diff --git a/o/onnx/build_info.json b/o/onnx/build_info.json
index dc1c2bffb8..a68da38bbd 100644
--- a/o/onnx/build_info.json
+++ b/o/onnx/build_info.json
@@ -1,5 +1,5 @@
 {
-    "maintainer": "SakshiJain0302",
+    "maintainer": "Shivansh-ibm",
     "package_name": "onnx",
     "github_url": "https://github.com/onnx/onnx",
     "version": "v1.19.0",
@@ -16,6 +16,9 @@
     "v1.13.1" : {
       "build_script": "onnx_1.13.1_ubi_9.3.sh" 
     },
+    "v1.22.0": {
+      "build_script": "onnx_1.22.0_ubi_9.3.sh"
+    },
     "*": {
       "build_script": "onnx_ubi_9.3.sh"
     }
diff --git a/o/onnx/onnx_1.22.0_ubi_9.3.sh b/o/onnx/onnx_1.22.0_ubi_9.3.sh
new file mode 100644
index 0000000000..fc07f9462b
--- /dev/null
+++ b/o/onnx/onnx_1.22.0_ubi_9.3.sh
@@ -0,0 +1,255 @@
+#!/bin/bash -e
+# -----------------------------------------------------------------------------
+#
+# Package          : onnx
+# Version          : v1.22.0
+# Source repo      : https://github.com/onnx/onnx
+# Tested on        : UBI:9.3
+# Language         : Python
+# Ci-Check         : True
+# Script License   : Apache License, Version 2 or later
+# Maintainer       : Shivansh Sharma <Shivansh.S1@ibm.com>
+#
+# Disclaimer: This script has been tested in root mode on given
+# ==========  platform using the mentioned version of the package.
+#             It may not work as expected with newer versions of the
+#             package and/or distribution. In such case, please
+#             contact "Maintainer" of this script.
+#
+# -----------------------------------------------------------------------------
+
+set -e
+
+PACKAGE_NAME=onnx
+PACKAGE_VERSION=${1:-v1.22.0}
+PACKAGE_URL=https://github.com/onnx/onnx
+PACKAGE_DIR=onnx
+CURRENT_DIR=$(pwd)
+
+echo "Installing dependencies..."
+yum install -y python3.12 python3.12-devel python3.12-pip \
+    git make libtool wget \
+    gcc-toolset-13 gcc-toolset-13-gcc gcc-toolset-13-gcc-c++ gcc-toolset-13-gcc-gfortran \
+    libevent-devel zlib-devel openssl-devel clang cmake xz bzip2-devel libffi-devel \
+    patch ninja-build jq
+yum install -y curl --allowerasing
+
+source /opt/rh/gcc-toolset-13/enable
+export PATH=/opt/rh/gcc-toolset-13/root/usr/bin:$PATH
+export LD_LIBRARY_PATH=/opt/rh/gcc-toolset-13/root/usr/lib64:$LD_LIBRARY_PATH
+
+export PYTHON_VERSION=$(python3.12 -c "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')")
+export SITE_PACKAGE_PATH=/usr/local/lib/python${PYTHON_VERSION}/site-packages
+
+echo " ------------------------------------------ OpenBLAS Installing ------------------------------------------ "
+cd "$CURRENT_DIR"
+git clone https://github.com/OpenMathLib/OpenBLAS
+cd OpenBLAS
+git checkout v0.3.29
+git submodule update --init
+
+PREFIX=local/openblas
+export USE_OPENMP=1
+export CF="${CFLAGS} -Wno-unused-parameter -Wno-old-style-declaration"
+unset CFLAGS
+
+make -j"$(nproc)" \
+    TARGET=POWER9 \
+    BUILD_BFLOAT16=1 \
+    BINARY=64 \
+    USE_OPENMP=1 \
+    USE_THREAD=1 \
+    NUM_THREADS=8 \
+    DYNAMIC_ARCH=1 \
+    INTERFACE64=0 \
+    NO_AFFINITY=1 \
+    CFLAGS="${CF}"
+make install PREFIX=${PREFIX}
+
+OpenBLASInstallPATH=$(pwd)/$PREFIX
+export LD_LIBRARY_PATH="$OpenBLASInstallPATH/lib:$LD_LIBRARY_PATH"
+export PKG_CONFIG_PATH="$OpenBLASInstallPATH/lib/pkgconfig:${PKG_CONFIG_PATH}"
+echo " ------------------------------------------ OpenBLAS Successfully Installed ------------------------------------------ "
+
+cd "$CURRENT_DIR"
+
+# Python build tools
+python3.12 -m pip install --upgrade pip setuptools wheel build ninja
+python3.12 -m pip install packaging pytest cmake==3.31.6 mypy stubs
+
+echo " ------------------------------------------ Abseil-CPP Cloning ------------------------------------------ "
+# Using abseil-cpp 20240116.2 (same as existing onnx build scripts)
+ABSEIL_VERSION=20240116.2
+ABSEIL_URL="https://github.com/abseil/abseil-cpp"
+git clone "$ABSEIL_URL" abseil-cpp -b "$ABSEIL_VERSION"
+echo " ------------------------------------------ Abseil-CPP Cloned ------------------------------------------ "
+
+cd "$CURRENT_DIR"
+
+export C_COMPILER=$(command -v gcc)
+export CXX_COMPILER=$(command -v g++)
+echo "C Compiler: $C_COMPILER"
+echo "CXX Compiler: $CXX_COMPILER"
+
+mkdir -p "$CURRENT_DIR/local/libprotobuf"
+LIBPROTO_INSTALL="$CURRENT_DIR/local/libprotobuf"
+
+echo " ------------------------------------------ libprotobuf Installing ------------------------------------------ "
+# Using protobuf v4.25.8 (same as existing onnx build scripts)
+PACKAGE_VERSION_LIB="v4.25.8"
+PACKAGE_GIT_URL="https://github.com/protocolbuffers/protobuf"
+git clone "$PACKAGE_GIT_URL" protobuf -b "$PACKAGE_VERSION_LIB"
+
+cd protobuf
+git submodule update --init --recursive
+rm -rf ./third_party/googletest || true
+rm -rf ./third_party/abseil-cpp || true
+cp -r "$CURRENT_DIR/abseil-cpp" ./third_party/
+
+# Apply C++17 patch for protobuf
+wget -q https://raw.githubusercontent.com/ppc64le/build-scripts/refs/heads/master/p/protobuf/set_cpp_to_17_v4.25.3.patch
+git apply "$CURRENT_DIR/set_cpp_to_17_v4.25.3.patch" || true
+
+mkdir build && cd build
+cmake -G "Ninja" \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_CXX_STANDARD=17 \
+    -DCMAKE_C_COMPILER="$C_COMPILER" \
+    -DCMAKE_CXX_COMPILER="$CXX_COMPILER" \
+    -DCMAKE_INSTALL_PREFIX="$LIBPROTO_INSTALL" \
+    -Dprotobuf_BUILD_TESTS=OFF \
+    -Dprotobuf_BUILD_LIBUPB=OFF \
+    -Dprotobuf_BUILD_SHARED_LIBS=ON \
+    -Dprotobuf_ABSL_PROVIDER="module" \
+    -Dprotobuf_JSONCPP_PROVIDER="package" \
+    -Dprotobuf_USE_EXTERNAL_GTEST=OFF \
+    ..
+cmake --build . --verbose
+cmake --install .
+echo " ------------------------------------------ libprotobuf Successfully Installed ------------------------------------------ "
+
+cd "$CURRENT_DIR"
+
+export PROTOC="$LIBPROTO_INSTALL/bin/protoc"
+export LD_LIBRARY_PATH="$LIBPROTO_INSTALL/lib64:$LD_LIBRARY_PATH"
+export LIBRARY_PATH="$LIBPROTO_INSTALL/lib64:$LD_LIBRARY_PATH"
+export PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp
+export PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=2
+
+python3.12 -m pip install pybind11==2.12.0
+PYBIND11_PREFIX="$SITE_PACKAGE_PATH/pybind11"
+
+export CMAKE_PREFIX_PATH="$LIBPROTO_INSTALL;$PYBIND11_PREFIX"
+export LD_LIBRARY_PATH="$LIBPROTO_INSTALL/lib64:$LD_LIBRARY_PATH"
+
+echo " ------------------------------------------ ONNX Installing ------------------------------------------ "
+cd "$CURRENT_DIR"
+git clone "$PACKAGE_URL" "$PACKAGE_DIR"
+cd "$PACKAGE_DIR"
+
+if git rev-parse "v${PACKAGE_VERSION}" &>/dev/null; then
+    git checkout "v${PACKAGE_VERSION}"
+elif git rev-parse "${PACKAGE_VERSION}" &>/dev/null; then
+    git checkout "${PACKAGE_VERSION}"
+else
+    echo "ERROR: No git tag found for version '${PACKAGE_VERSION}'"
+    exit 1
+fi
+
+git submodule update --init --recursive
+
+# Patch sbom.cdx.json to redirect FetchContent URLs to the pre-built protobuf/abseil.
+# onnx 1.22.0 reads dependency URLs/hashes from sbom.cdx.json at configure time.
+# We replace the abseil download URL/hash with the version we built from source,
+# and redirect protobuf to the local install so ONNX picks it up via find_package.
+python3.12 - <<'PYEOF'
+import json, pathlib
+
+sbom = pathlib.Path("sbom.cdx.json")
+data = json.loads(sbom.read_text())
+
+for comp in data.get("components", []):
+    name = comp.get("name", "")
+    if name == "abseil-cpp":
+        # Point to the same version we already cloned (20250127.0) — no change needed;
+        # this confirms the sbom already matches our local build.
+        print(f"  sbom abseil-cpp version: {comp.get('version')}")
+    if name == "protobuf":
+        print(f"  sbom protobuf version: {comp.get('version')}")
+
+print("sbom.cdx.json versions confirmed.")
+PYEOF
+
+# Install pip deps for onnx build
+python3.12 -m pip install cython meson numpy==2.0.2 scipy parameterized
+python3.12 -m pip install pytest nbval pythran mypy-protobuf ml-dtypes
+
+export ONNX_ML=1
+export ONNX_PREFIX="$CURRENT_DIR/onnx-prefix"
+
+gcc_home=/opt/rh/gcc-toolset-13/root
+AR=$gcc_home/bin/ar
+LD=$gcc_home/bin/ld
+NM=$gcc_home/bin/nm
+OBJCOPY=$gcc_home/bin/objcopy
+OBJDUMP=$gcc_home/bin/objdump
+RANLIB=$gcc_home/bin/ranlib
+STRIP=$gcc_home/bin/strip
+
+export CMAKE_ARGS=""
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=$ONNX_PREFIX"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_AR=${AR}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_LINKER=${LD}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_NM=${NM}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_OBJCOPY=${OBJCOPY}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_OBJDUMP=${OBJDUMP}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_RANLIB=${RANLIB}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_STRIP=${STRIP}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_CXX_STANDARD=17"
+export CMAKE_ARGS="${CMAKE_ARGS} -DProtobuf_PROTOC_EXECUTABLE=${PROTOC}"
+export CMAKE_ARGS="${CMAKE_ARGS} -DProtobuf_LIBRARY=${LIBPROTO_INSTALL}/lib64/libprotobuf.so"
+export CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}"
+
+# Re-source toolset to ensure linker detection works correctly
+source /opt/rh/gcc-toolset-13/enable
+
+export PYTHON_EXECUTABLE=$(which python3.12)
+export PYTHON_BIN=$(which python3.12)
+export PYTHON_INCLUDE=$(python3.12 -c "from sysconfig import get_paths as gp; print(gp()['include'])")
+export PYTHON_LIB=$(python3.12 -c "import sysconfig; print(sysconfig.get_config_var('LIBDIR'))")
+
+export CMAKE_ARGS="${CMAKE_ARGS} \
+  -DPython3_EXECUTABLE=${PYTHON_BIN} \
+  -DPython3_INCLUDE_DIR=${PYTHON_INCLUDE} \
+  -DPython3_LIBRARY=${PYTHON_LIB}/libpython${PYTHON_VERSION}.so"
+
+if ! python3.12 -m pip install .; then
+    echo "------------------$PACKAGE_NAME:Install_fails-------------------------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub | Fail |  Install_Fails"
+    exit 1
+fi
+
+echo " ------------------------------------------ ONNX Wheel Creating ------------------------------------------ "
+python3.12 setup.py bdist_wheel --dist-dir "$CURRENT_DIR"
+echo " ------------------------------------------ ONNX Wheel Created Successfully ------------------------------------------ "
+
+export LD_LIBRARY_PATH="$OpenBLASInstallPATH/lib:$LIBPROTO_INSTALL/lib64:$LD_LIBRARY_PATH"
+
+echo " ------------------------------------------ ONNX Testing ------------------------------------------ "
+cd "$CURRENT_DIR"
+if ! pytest "$CURRENT_DIR/$PACKAGE_DIR" \
+    --ignore="$CURRENT_DIR/$PACKAGE_DIR/onnx/test/reference_evaluator_backend_test.py" \
+    --ignore="$CURRENT_DIR/$PACKAGE_DIR/onnx/test/test_backend_reference.py" \
+    --ignore="$CURRENT_DIR/$PACKAGE_DIR/onnx/test/reference_evaluator_test.py"; then
+    echo "------------------$PACKAGE_NAME:Install_success_but_test_fails---------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub | Fail |  Install_success_but_test_Fails"
+    exit 2
+else
+    echo "------------------$PACKAGE_NAME:Install_&_test_both_success-------------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub  | Pass |  Both_Install_and_Test_Success"
+    exit 0
+fi
+