diff --git a/platform/nvidia-bluefield/nasa-cli-helper/nasa-cli-helper.py b/platform/nvidia-bluefield/nasa-cli-helper/nasa-cli-helper.py
index 2728cf58069..1c0c60603e0 100644
--- a/platform/nvidia-bluefield/nasa-cli-helper/nasa-cli-helper.py
+++ b/platform/nvidia-bluefield/nasa-cli-helper/nasa-cli-helper.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 #
-# Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES.
+# SPDX-FileCopyrightText: NVIDIA CORPORATION & AFFILIATES
+# Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # Apache-2.0
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,20 +17,112 @@
 # limitations under the License.
 #
 
+import re
 import sys
 import argparse
 import docker
 import config.plugins.nvidia_bluefield as nvda_bf
 
+try:
+    from sonic_py_common import device_info
+except ImportError:
+    device_info = None
+
+SAI_PROFILE_FILENAME = 'sai.profile'
+CT_AGING_IN_SECONDS_KEY = 'CT_AGING_IN_SECONDS'
+CT_AGING_DEFAULT_SECONDS = 1
+
+
+def get_sai_profile_path():
+    """Return path to sai.profile under device tree for current platform/HwSKU."""
+    if device_info is None:
+        return None
+    platform, hwsku = device_info.get_platform_and_hwsku()
+    if not platform or not hwsku:
+        return None
+    return f'/usr/share/sonic/device/{platform}/{hwsku}/{SAI_PROFILE_FILENAME}'
+
+
+def get_aging_interval():
+    """Read CT_AGING_IN_SECONDS from sai.profile. If not present, return default 1."""
+    sai_profile_path = get_sai_profile_path()
+    if not sai_profile_path:
+        print("Error: Could not get platform/HwSKU", file=sys.stderr)
+        sys.exit(1)
+    try:
+        with open(sai_profile_path, 'r') as f:
+            content = f.read()
+    except (FileNotFoundError, OSError):
+        return CT_AGING_DEFAULT_SECONDS
+
+    pattern = re.compile(r'^' + re.escape(CT_AGING_IN_SECONDS_KEY) + r'=(\d+)', re.MULTILINE)
+    match = pattern.search(content)
+    if match:
+        return int(match.group(1))
+    return CT_AGING_DEFAULT_SECONDS
+
+
+def set_aging_interval(seconds):
+    """Update CT_AGING_IN_SECONDS in sai.profile. Add line if missing, else replace."""
+    sai_profile_path = get_sai_profile_path()
+    if not sai_profile_path:
+        print("Error: Could not get platform/HwSKU (sonic_py_common.device_info not available or returned empty).", file=sys.stderr)
+        sys.exit(1)
+    try:
+        with open(sai_profile_path, 'r') as f:
+            content = f.read()
+    except FileNotFoundError:
+        print(f"Error: {sai_profile_path} not found.", file=sys.stderr)
+        sys.exit(1)
+    except OSError as e:
+        print(f"Error: Failed to read sai.profile: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    new_line = f'{CT_AGING_IN_SECONDS_KEY}={seconds}'
+    pattern = re.compile(r'^.*' + re.escape(CT_AGING_IN_SECONDS_KEY) + r'=.*$', re.MULTILINE)
+    if pattern.search(content):
+        content = pattern.sub(new_line, content, count=1)
+    else:
+        content = content.rstrip()
+        if content and not content.endswith('\n'):
+            content += '\n'
+        content += new_line + '\n'
+
+    try:
+        with open(sai_profile_path, 'w') as f:
+            f.write(content)
+    except OSError as e:
+        print(f"Error: Failed to write sai.profile: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    print(f"CT_AGING_IN_SECONDS has been set to {seconds}.", file=sys.stderr)
+    print("Please run config reload or reboot for the change to take effect.", file=sys.stderr)
+
+
 def main():
     parser = argparse.ArgumentParser(description='NASA CLI Helper for NVIDIA BlueField')
-    parser.add_argument('command', choices=['get_packet_debug_mode', 'get_sai_debug_mode'],
-                       help='Command to execute')
+    parser.add_argument('command', choices=['get_packet_debug_mode', 'get_sai_debug_mode', 'get_aging_interval', 'set_aging_interval'],
+                        help='Command to execute')
     parser.add_argument('-f', '--filename', action='store_true',
-                       help='Show filename instead of status')
+                        help='Show filename instead of status (for get_* commands)')
+    parser.add_argument('value', nargs='?', type=int, default=None,
+                        help='Aging interval in seconds (for set_aging_interval; default 1)')
 
     args = parser.parse_args()
 
+    if args.command == 'get_aging_interval':
+        seconds = get_aging_interval()
+        print(f"{seconds}")
+        return
+
+    if args.command == 'set_aging_interval':
+        seconds = args.value if args.value is not None else CT_AGING_DEFAULT_SECONDS
+        if seconds < 1:
+            print("Error: aging interval must be >= 1 second.", file=sys.stderr)
+            sys.exit(1)
+        set_aging_interval(seconds)
+        return
+
     try:
         docker_client = docker.from_env()
     except docker.errors.DockerException as e:
@@ -44,11 +137,12 @@ def main():
     except Exception as e:
         print(f"Error: Failed to execute '{args.command}': {e}", file=sys.stderr)
         sys.exit(1)
-    
+
     if args.filename:
         print(filename)
     else:
         print(status)
 
+
 if __name__ == '__main__':
     main()