Simplest instructions–fry onion, fry garlic, add the meat, fry for a few minutes, then add the masala, fry a lil bit more, add some yogurt, fry a bit more, keep bhoon-ing and then leave it on med-low heat for a bit (30 min for chicken, 45 for goat/beef).
or, you know, just buy a packet of shan masala, and follow the instructions.
also, look up bajiascooking on youtube…I love the way she explanis everything and u do kind of learn a few things.