Can i invest 50k in between my SIP when market falls through coin?

I have started direct MF of monthly SIP 2k through zerodha coin. After few months if market falls can i invest 50,000 in one go into same SIP through coin??

Yes, you can add 50k in one go to an already running SIP by doing a lumpsum deposit. Select the same mutual fund and ‘Buy Direct’ in lumpsum.