Method:-

1. Take prawns in a bowl; add 3 tablespoons of ginger garlic paste, 1tbs turmeric powder, 1tbs garam masala, 1 tbs salt, 1 tbs red chili powder. Mix it and keep aside for marinating.
2.  Wash basmati rice and keep aside
3. Heat 4 tablepoon of oil in a big vessel
4. Add chopped onion, ginger-garlic paste, Cinnamon stick in vessel; and stir it till onion is brown.
5.  Add washed rice into vessel ,1 tablespoon of saffron and mix it well.
6. Add chopped tomatoes and mix all other ingredients. Mix well
7. Add salt as required
8. Add 5 cup of water.
9.  After the gravy comes to a boil, simmer and cook until all the water is absorbed and the rice is cooked.