diff --git a/f/faiss/build_info.json b/f/faiss/build_info.json
index 9ea1ab3450..9f0b32dc88 100644
--- a/f/faiss/build_info.json
+++ b/f/faiss/build_info.json
@@ -1,16 +1,21 @@
 {
-    "maintainer": "Madhur-iiitd",
+    "maintainer": "amitkumar282",
     "package_name": "faiss",
     "github_url": "https://github.com/facebookresearch/faiss.git",
-    "version": "1.12.0",
+    "version": "1.9.0",
     "default_branch": "main",
     "build_script": "faiss_1.12_ubi.sh",
     "package_dir": "f/faiss",
-    "docker_build": true,
+    "docker_build": false,
     "validate_build_script": true,
     "use_non_root_user": false,
     "wheel_build": true,
-
+    "1.9.0": {
+        "build_script": [
+            "faiss_v1.9.0_ubi_8.10.sh",
+            "faiss_v1.9.0_ubi_9.8.sh"
+        ]
+    },
     "*": {
         "build_script": "faiss_1.12_ubi.sh"
     }
diff --git a/f/faiss/faiss_v1.9.0_ubi_8.10.sh b/f/faiss/faiss_v1.9.0_ubi_8.10.sh
new file mode 100644
index 0000000000..b4ac32292e
--- /dev/null
+++ b/f/faiss/faiss_v1.9.0_ubi_8.10.sh
@@ -0,0 +1,349 @@
+#!/bin/bash -ex
+# ----------------------------------------------------------------------------
+# Package        : faiss
+# Version        : v1.9.0
+# Source repo    : https://github.com/facebookresearch/faiss.git
+# Tested on      : UBI 8.10
+# Language       : C++
+# Ci-Check       : true
+# Maintainer     : Amit Kumar <amit.kumar282@ibm.com>
+# Script License : Apache License, Version 2.0 or later
+#
+# Disclaimer     : This script has been tested in root mode on the specified
+#                  platform and package version. Functionality with newer
+#                  versions of the package or OS is not guaranteed.
+# ----------------------------------------------------------------------------
+
+# Configuration
+PACKAGE_NAME="faiss"
+PACKAGE_ORG="facebookresearch"
+PACKAGE_VERSION="v1.9.0"
+PACKAGE_URL="https://github.com/${PACKAGE_ORG}/${PACKAGE_NAME}.git"
+BUILD_HOME=$(pwd)
+
+# ----------------------------------------------------------------------------
+# Install repositories and dependencies
+# ----------------------------------------------------------------------------
+
+# Remove any stale CentOS Linux 8 / vault.centos.org repo files that may be
+# baked into the base image and cause timeout failures at metadata fetch time.
+find /etc/yum.repos.d/ -maxdepth 1 -name "*.repo" \
+    ! -name "ubi.repo" \
+    ! -name "redhat.repo" \
+    ! -name "almalinux8.repo" \
+    -delete 2>/dev/null || true
+
+# Enable UBI repos already present in the UBI 8 container.
+dnf install -y dnf-plugins-core
+
+dnf config-manager \
+    --set-enabled \
+    ubi-8-baseos-rpms \
+    ubi-8-appstream-rpms \
+    ubi-8-codeready-builder-rpms 2>/dev/null || true
+
+# Add AlmaLinux 8 repositories for packages not available in UBI.
+# AlmaLinux 8 is ABI-compatible with RHEL 8 and supports ppc64le.
+cat > /etc/yum.repos.d/almalinux8.repo << 'EOF'
+[al8-baseos]
+name=AlmaLinux 8 - BaseOS
+baseurl=https://repo.almalinux.org/almalinux/8/BaseOS/ppc64le/os/
+gpgcheck=0
+enabled=1
+excludepkgs=almalinux-release* almalinux-repos* almalinux-gpg-keys*
+
+[al8-appstream]
+name=AlmaLinux 8 - AppStream
+baseurl=https://repo.almalinux.org/almalinux/8/AppStream/ppc64le/os/
+gpgcheck=0
+enabled=1
+excludepkgs=almalinux-release* almalinux-repos* almalinux-gpg-keys*
+
+[al8-powertools]
+name=AlmaLinux 8 - PowerTools
+baseurl=https://repo.almalinux.org/almalinux/8/PowerTools/ppc64le/os/
+gpgcheck=0
+enabled=1
+excludepkgs=almalinux-release* almalinux-repos* almalinux-gpg-keys*
+EOF
+
+# EPEL for any remaining dependencies.
+# Use rpm --nodeps --noscripts to avoid the epel-release -> almalinux-release
+# dependency chain that conflicts with redhat-release on UBI 8.
+if ! rpm -q epel-release &>/dev/null; then
+    EPEL_RPM=$(mktemp /tmp/epel-release-XXXXXX.rpm)
+
+    curl -fsSL \
+        -o "$EPEL_RPM" \
+        https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
+
+    rpm -ivh --nodeps --noscripts "$EPEL_RPM"
+
+    rm -f "$EPEL_RPM"
+fi
+
+dnf install -y git gcc-toolset-12 cmake file lapack-devel python3-devel python3-pip pkg-config swig unzip
+
+# ----------------------------------------------------------------------------
+# Enable GCC Toolset
+# ----------------------------------------------------------------------------
+
+source /opt/rh/gcc-toolset-12/enable
+
+# ----------------------------------------------------------------------------
+# Build and install OpenBLAS
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME"
+
+rm -rf OpenBLAS
+
+git clone https://github.com/OpenMathLib/OpenBLAS
+cd OpenBLAS
+git checkout v0.3.34
+
+# Build libraries and shared objects without running the OpenBLAS test suite.
+ret=0
+make -j"$(nproc)" libs || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: OpenBLAS build failed."
+    exit 1
+fi
+make -j"$(nproc)" shared
+make PREFIX=/usr/local install
+
+# Make /usr/local/lib visible to the runtime linker.
+echo "/usr/local/lib" > /etc/ld.so.conf.d/openblas.conf
+ldconfig
+
+# Verify OpenBLAS is available.
+ldconfig -p | grep openblas
+
+# ----------------------------------------------------------------------------
+# Build and install gflags
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME"
+
+rm -rf gflags
+
+git clone \
+    --branch v2.3.0 \
+    --depth 1 \
+    https://github.com/gflags/gflags.git
+
+cd gflags
+mkdir build
+cd build
+
+cmake .. \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX=/opt/gflags-2.3.0 \
+    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_STATIC_LIBS=OFF \
+    -DBUILD_TESTING=OFF
+
+ret=0
+make -j"$(nproc)" || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: gflags build failed."
+    exit 1
+fi
+make install
+
+# ----------------------------------------------------------------------------
+# Detect Python and create virtual environment
+# ----------------------------------------------------------------------------
+
+PYTHON_BIN=$(command -v python3 || command -v python)
+"${PYTHON_BIN}" -m venv "$BUILD_HOME/faiss-env"
+source "$BUILD_HOME/faiss-env/bin/activate"
+
+# Download numpy ppc64le wheel directly from IBM index and install from disk.
+# UBI 8 has glibc 2.28 — use manylinux_2_27 wheels.
+PYVER=$("${PYTHON_BIN}" -c "import sys; print(f'cp{sys.version_info.major}{sys.version_info.minor}')")
+NUMPY_WHL="numpy-2.4.6+ppc64le1-${PYVER}-${PYVER}-manylinux_2_27_ppc64le.whl"
+curl -fsSL \
+    "https://wheels.developerfirst.ibm.com/ppc64le/linux/${NUMPY_WHL}" \
+    -o "/tmp/${NUMPY_WHL}"
+pip install "/tmp/${NUMPY_WHL}"
+rm -f "/tmp/${NUMPY_WHL}"
+
+# ----------------------------------------------------------------------------
+# Install Python dependencies
+# ----------------------------------------------------------------------------
+
+pip install \
+    --prefer-binary \
+    pytest \
+    wheel \
+    scipy \
+    swig \
+    auditwheel \
+    patchelf
+
+# ----------------------------------------------------------------------------
+# Clone FAISS
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME"
+
+rm -rf "$PACKAGE_NAME"
+
+git clone "$PACKAGE_URL" -b "$PACKAGE_VERSION"
+
+cd "$PACKAGE_NAME"
+
+# ----------------------------------------------------------------------------
+# Build FAISS
+# ----------------------------------------------------------------------------
+
+mkdir build
+cd build
+
+cmake \
+    -DFAISS_ENABLE_GPU=OFF \
+    -DFAISS_ENABLE_PYTHON=ON \
+    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_TESTING=ON \
+    -DFAISS_ENABLE_C_API=ON \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DPython_EXECUTABLE="$(command -v python)" \
+    ..
+
+ret=0
+make -j"$(nproc)" || ret=$?
+
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: Build failed."
+    exit 1
+fi
+
+# ----------------------------------------------------------------------------
+# Verify native libraries
+# ----------------------------------------------------------------------------
+
+file faiss/libfaiss.so
+file faiss/python/_swigfaiss.so
+
+# ----------------------------------------------------------------------------
+# Run FAISS C++ tests
+# ----------------------------------------------------------------------------
+
+ret=0
+make test || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: C++ tests failed."
+    exit 2
+fi
+
+# ----------------------------------------------------------------------------
+# Build Python wheel
+# ----------------------------------------------------------------------------
+
+cd faiss/python
+
+rm -rf wheelhouse
+mkdir -p wheelhouse/raw
+
+ret=0
+python -m pip wheel . -w wheelhouse/raw || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: Python wheel build failed."
+    exit 1
+fi
+
+RAW_WHEEL=$(find wheelhouse/raw -maxdepth 1 \
+    -name "faiss-1.9.0-*.whl" -print -quit)
+
+if [ -z "$RAW_WHEEL" ]; then
+    echo "FAIL: Python wheel was not generated."
+    exit 1
+fi
+
+echo "Raw wheel:"
+echo "$RAW_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Repair wheel
+#
+# Bundle libfaiss.so and other required shared libraries and generate a
+# platform-specific ppc64le wheel.
+# ----------------------------------------------------------------------------
+
+auditwheel repair \
+    "$RAW_WHEEL" \
+    -w wheelhouse
+
+# Remove the unrepaired wheel so wheelhouse contains only the publishable
+# repaired wheel.
+rm -f "$RAW_WHEEL"
+
+REPAIRED_WHEEL=$(find wheelhouse -maxdepth 1 \
+    -name "faiss-1.9.0-*.whl" -print -quit)
+
+if [ -z "$REPAIRED_WHEEL" ]; then
+    echo "FAIL: Repaired wheel was not generated."
+    exit 1
+fi
+
+echo "Repaired wheel:"
+echo "$REPAIRED_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Verify repaired wheel contents
+# ----------------------------------------------------------------------------
+
+echo "=== Repaired wheel contents ==="
+
+unzip -l "$REPAIRED_WHEEL" \
+    | grep -E 'libfaiss|_swigfaiss|\.libs'
+
+if ! unzip -l "$REPAIRED_WHEEL" | grep -q 'libfaiss'; then
+    echo "FAIL: Repaired wheel does not contain libfaiss."
+    exit 1
+fi
+
+echo "=== Auditwheel information ==="
+
+auditwheel show "$REPAIRED_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Install repaired wheel
+# ----------------------------------------------------------------------------
+
+pip install \
+    --force-reinstall \
+    "$REPAIRED_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Verify Python imports
+# ----------------------------------------------------------------------------
+
+python -c "import numpy; print('NumPy:', numpy.__version__)"
+
+python -c "import faiss; print('FAISS:', faiss.__version__)"
+
+# ----------------------------------------------------------------------------
+# Python tests
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME/$PACKAGE_NAME"
+
+ret=0
+python -m pytest ./tests/test_*.py -v || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: Python tests failed."
+    exit 2
+fi
+
+# ----------------------------------------------------------------------------
+# Conclude
+# ----------------------------------------------------------------------------
+
+set +ex
+
+echo "Build and tests complete!"
+echo "Publishable wheel:"
+echo "$BUILD_HOME/$PACKAGE_NAME/build/faiss/python/$REPAIRED_WHEEL"
+echo "Libraries available at [$BUILD_HOME/$PACKAGE_NAME/build/faiss/]"
diff --git a/f/faiss/faiss_v1.9.0_ubi_9.8.sh b/f/faiss/faiss_v1.9.0_ubi_9.8.sh
new file mode 100644
index 0000000000..b8590c0f32
--- /dev/null
+++ b/f/faiss/faiss_v1.9.0_ubi_9.8.sh
@@ -0,0 +1,324 @@
+#!/bin/bash -ex
+# ----------------------------------------------------------------------------
+# Package        : faiss
+# Version        : v1.9.0
+# Source repo    : https://github.com/facebookresearch/faiss.git
+# Tested on      : UBI 9.8
+# Language       : C++
+# Ci-Check       : true
+# Maintainer     : Amit Kumar <amit.kumar282@ibm.com>
+# Script License : Apache License, Version 2.0 or later
+#
+# Disclaimer     : This script has been tested in root mode on the specified
+#                  platform and package version. Functionality with newer
+#                  versions of the package or OS is not guaranteed.
+# ----------------------------------------------------------------------------
+
+# Configuration
+PACKAGE_NAME="faiss"
+PACKAGE_ORG="facebookresearch"
+PACKAGE_VERSION="v1.9.0"
+PACKAGE_URL="https://github.com/${PACKAGE_ORG}/${PACKAGE_NAME}.git"
+BUILD_HOME=$(pwd)
+
+# ----------------------------------------------------------------------------
+# Install repositories and dependencies
+# ----------------------------------------------------------------------------
+
+# Remove any stale CentOS Linux 8 / vault.centos.org repo files that may be
+# baked into the base image and cause timeout failures at metadata fetch time.
+find /etc/yum.repos.d/ -maxdepth 1 -name "*.repo" \
+    ! -name "ubi.repo" \
+    ! -name "redhat.repo" \
+    ! -name "almalinux9.repo" \
+    -delete 2>/dev/null || true
+
+# Add AlmaLinux 9 repos for packages not in UBI (lapack-devel, python3-*, swig).
+# AlmaLinux 9 is ABI-compatible with RHEL 9 and fully supports ppc64le.
+# CentOS Stream 9 mirrors dropped ppc64le support (404 on mirror.stream.centos.org).
+cat > /etc/yum.repos.d/almalinux9.repo << 'EOF'
+[al9-baseos]
+name=AlmaLinux 9 - BaseOS
+baseurl=https://repo.almalinux.org/almalinux/9/BaseOS/ppc64le/os/
+gpgcheck=0
+enabled=1
+
+[al9-appstream]
+name=AlmaLinux 9 - AppStream
+baseurl=https://repo.almalinux.org/almalinux/9/AppStream/ppc64le/os/
+gpgcheck=0
+enabled=1
+
+[al9-crb]
+name=AlmaLinux 9 - CRB
+baseurl=https://repo.almalinux.org/almalinux/9/CRB/ppc64le/os/
+gpgcheck=0
+enabled=1
+EOF
+
+dnf install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm
+
+dnf install -y git gcc-toolset-13 cmake file lapack-devel python3-devel python3-pip pkg-config swig unzip
+
+# ----------------------------------------------------------------------------
+# Enable GCC Toolset
+# ----------------------------------------------------------------------------
+
+source /opt/rh/gcc-toolset-13/enable
+
+# ----------------------------------------------------------------------------
+# Build and install OpenBLAS
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME"
+
+rm -rf OpenBLAS
+
+git clone https://github.com/OpenMathLib/OpenBLAS
+cd OpenBLAS
+git checkout v0.3.34
+
+ret=0
+make -j"$(nproc)" libs || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: OpenBLAS build failed."
+    exit 1
+fi
+make -j"$(nproc)" shared
+make PREFIX=/usr/local install
+
+# Make /usr/local/lib visible to the runtime linker.
+echo "/usr/local/lib" > /etc/ld.so.conf.d/openblas.conf
+ldconfig
+
+# Verify OpenBLAS is available.
+ldconfig -p | grep openblas
+
+# ----------------------------------------------------------------------------
+# Build and install gflags
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME"
+
+rm -rf gflags
+
+git clone \
+    --branch v2.3.0 \
+    --depth 1 \
+    https://github.com/gflags/gflags.git
+
+cd gflags
+mkdir build
+cd build
+
+cmake .. \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX=/opt/gflags-2.3.0 \
+    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_STATIC_LIBS=OFF \
+    -DBUILD_TESTING=OFF
+
+ret=0
+make -j"$(nproc)" || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: gflags build failed."
+    exit 1
+fi
+make install
+
+# ----------------------------------------------------------------------------
+# Detect Python and create virtual environment
+# ----------------------------------------------------------------------------
+
+PYTHON_BIN=$(command -v python3 || command -v python)
+"${PYTHON_BIN}" -m venv "$BUILD_HOME/faiss-env"
+source "$BUILD_HOME/faiss-env/bin/activate"
+
+# Download numpy ppc64le wheel directly from IBM index and install from disk.
+# UBI 9 has glibc 2.34 — use manylinux_2_34 IBM-optimized wheels.
+PYVER=$("${PYTHON_BIN}" -c "import sys; print(f'cp{sys.version_info.major}{sys.version_info.minor}')")
+NUMPY_WHL="numpy-2.4.6+ppc64le1-${PYVER}-${PYVER}-manylinux_2_34_ppc64le.whl"
+curl -fsSL \
+    "https://wheels.developerfirst.ibm.com/ppc64le/linux/${NUMPY_WHL}" \
+    -o "/tmp/${NUMPY_WHL}"
+pip install "/tmp/${NUMPY_WHL}"
+rm -f "/tmp/${NUMPY_WHL}"
+
+# ----------------------------------------------------------------------------
+# Install Python dependencies
+# ----------------------------------------------------------------------------
+
+pip install \
+    --prefer-binary \
+    pytest \
+    wheel \
+    scipy \
+    swig \
+    auditwheel \
+    patchelf
+
+# ----------------------------------------------------------------------------
+# Clone FAISS
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME"
+
+rm -rf "$PACKAGE_NAME"
+
+git clone "$PACKAGE_URL" -b "$PACKAGE_VERSION"
+
+cd "$PACKAGE_NAME"
+
+# ----------------------------------------------------------------------------
+# Build FAISS
+# ----------------------------------------------------------------------------
+
+mkdir build
+cd build
+
+cmake \
+    -DFAISS_ENABLE_GPU=OFF \
+    -DFAISS_ENABLE_PYTHON=ON \
+    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_TESTING=ON \
+    -DFAISS_ENABLE_C_API=ON \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DPython_EXECUTABLE="$(command -v python)" \
+    ..
+
+ret=0
+make -j"$(nproc)" || ret=$?
+
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: Build failed."
+    exit 1
+fi
+
+# ----------------------------------------------------------------------------
+# Verify native libraries
+# ----------------------------------------------------------------------------
+
+file faiss/libfaiss.so
+file faiss/python/_swigfaiss.so
+
+# ----------------------------------------------------------------------------
+# Run FAISS C++ tests
+# ----------------------------------------------------------------------------
+
+ret=0
+make test || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: C++ tests failed."
+    exit 2
+fi
+
+# ----------------------------------------------------------------------------
+# Build Python wheel
+# ----------------------------------------------------------------------------
+
+cd faiss/python
+
+rm -rf wheelhouse
+mkdir -p wheelhouse/raw
+
+ret=0
+python -m pip wheel . -w wheelhouse/raw || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: Python wheel build failed."
+    exit 1
+fi
+
+RAW_WHEEL=$(find wheelhouse/raw -maxdepth 1 \
+    -name "faiss-1.9.0-*.whl" -print -quit)
+
+if [ -z "$RAW_WHEEL" ]; then
+    echo "FAIL: Python wheel was not generated."
+    exit 1
+fi
+
+echo "Raw wheel:"
+echo "$RAW_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Repair wheel
+#
+# Bundle libfaiss.so and other required shared libraries and generate a
+# platform-specific ppc64le wheel.
+# ----------------------------------------------------------------------------
+
+auditwheel repair \
+    "$RAW_WHEEL" \
+    -w wheelhouse
+
+# Remove the unrepaired wheel so wheelhouse contains only the publishable
+# repaired wheel.
+rm -f "$RAW_WHEEL"
+
+REPAIRED_WHEEL=$(find wheelhouse -maxdepth 1 \
+    -name "faiss-1.9.0-*.whl" -print -quit)
+
+if [ -z "$REPAIRED_WHEEL" ]; then
+    echo "FAIL: Repaired wheel was not generated."
+    exit 1
+fi
+
+echo "Repaired wheel:"
+echo "$REPAIRED_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Verify repaired wheel contents
+# ----------------------------------------------------------------------------
+
+echo "=== Repaired wheel contents ==="
+
+unzip -l "$REPAIRED_WHEEL" \
+    | grep -E 'libfaiss|_swigfaiss|\.libs'
+
+if ! unzip -l "$REPAIRED_WHEEL" | grep -q 'libfaiss'; then
+    echo "FAIL: Repaired wheel does not contain libfaiss."
+    exit 1
+fi
+
+echo "=== Auditwheel information ==="
+
+auditwheel show "$REPAIRED_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Install repaired wheel
+# ----------------------------------------------------------------------------
+
+pip install \
+    --force-reinstall \
+    "$REPAIRED_WHEEL"
+
+# ----------------------------------------------------------------------------
+# Verify Python imports
+# ----------------------------------------------------------------------------
+
+python -c "import numpy; print('NumPy:', numpy.__version__)"
+
+python -c "import faiss; print('FAISS:', faiss.__version__)"
+
+# ----------------------------------------------------------------------------
+# Python tests
+# ----------------------------------------------------------------------------
+
+cd "$BUILD_HOME/$PACKAGE_NAME"
+
+ret=0
+python -m pytest ./tests/test_*.py -v || ret=$?
+if [ "$ret" -ne 0 ]; then
+    echo "FAIL: Python tests failed."
+    exit 2
+fi
+
+# ----------------------------------------------------------------------------
+# Conclude
+# ----------------------------------------------------------------------------
+
+set +ex
+
+echo "Build and tests complete!"
+echo "Publishable wheel:"
+echo "$BUILD_HOME/$PACKAGE_NAME/build/faiss/python/$REPAIRED_WHEEL"
+echo "Libraries available at [$BUILD_HOME/$PACKAGE_NAME/build/faiss/]"