@arunparida12 I am seeing the same issue on the official getCandleData endpoint.
Environment: server-side PHP/WordPress
Endpoint: /rest/secure/angelbroking/historical/v1/getCandleData
Exchange: NSE
Symbol token: 3045 (SBIN)
Interval: ONE_DAY
Range: approximately 90 days ending on the previous completed day
The same authenticated session successfully returns HTTP 200 for login and HTTP 200 for /market/v1/quote, but the very first getCandleData request returns HTTP 403 with an empty/non-JSON response. No repeated requests or browser-side loop is being made.
Could the SmartAPI team please confirm whether this is a server-side false rate-limit/access issue and check the endpoint telemetry? I can provide my Client ID privately to an admin, but will not post credentials or API keys publicly.