How to execute F&O order?

F&O
1

I want to buy Ex. Banknifty 19th may 34000 PE when its price touch 140 (CMP 120) …also at the same time I want to place SL of 80…How to execute this order ?

2

for both orders, use the SL-L or SL-M
Normal buy order price above CMP will not work and same for SL.

ig you put Limit then it will be placed at that price, and market means at the opposing best bid or ask price.

What are limit and market orders? (zerodha.com)