How do I make a short sell on Zerodha Pi Trading Terminal? I am actually new into this

Short sell is nothing but selling the stock first and then buying it, go to market watch select the stock and press F2 while selling ( sell window will open) and F1 while buying ( buy window will open)

check below link for demo explained completely from basics


You might also want to check out following link on zerodha connect to understand it in a better way.