@NAPSTER Dont worry about liquidity on listing day atleast.
Mostly you should be able to sell like
@Vimal Garodia mentioned.
About Groww,
Can't recall about pre-open selling.
But about Zerodha and HDFC Sec, I can confirm, they do allow.
If you are new to IPO market, specially SME segment, I would suggest, go with Zerodha.