UTI Nifty 50 and ICICI Nifty 50 Tracking Errors

Hi, I’m new to investing and would like to allocate a significant portion of my portfolio to Nifty 50 index funds as, in the long run, they seem to give good returns, especially when compounded and as it is very difficult to beat the market. On the Zerodha Coin app, the expense ratios were mentioned, but tracking error was not. Could you please tell me the tracking errors of UTI Nifty 50, ICICI Prudential Nifty 50, UTI Nifty Next 50 and ICICI Prudential Nifty Next 50. For future references, where do we find tracking errors?