I am trying to get option historical data for active symbol NSE:NIFTY22N0318200CE. It says invalid symbol. I am able to get data for equity symbol.Here is the response: {'s': 'error', 'code': -300, 'message': 'Please provide a valid symbol'}

Need a control to add the Strike Price from Option Chain into Watchlist. I am sharing the screenshot of Zerodha. Need similar feature.

Nifty Financial Service Option Chain broken. The most probable reason is that the expiry date is aligned to Thursday, where as the actual expiry is on Tuesday. Please fix this. 

Does Fyers require 50 percent cash/liquidbees and 50 percent equity/mutual funds for pledging or can I get 100% margin benefit for pledged equity stocks/mutual funds?

I have mutual funds bought in Zerodha Coin and pledged it for FNO trading. In case I want it to transfer it to Fyers Direct and pledge it what is the process? I don't want to do a sell and buy transaction. 

Is the same applicable for equity holdings ?

Hi, Pre-defined watchlist like Nifty 50 stocks are not available. Please restore them ASAP. 

Just like in the web app, the Fyers web should also allow the symbols to be available until the selection is done. This would do away with the need for typing the symbol again in the 
Add symbol search field.