Marinate chicken with the listed ingredients and leave it to marinate for 30 mins.
Now heat oil in a nonstick kadai. Crackle in some cumin seeds and fry for a min.
Now add in onions and green chilli. Fry them for 5 mins. Till it turns light golden.
Now add in ginger garlic paste and fry till the onion is well browned. Make sure the onion is golden, because that what gives good colour to the curry.
Now add in the marinated chicken and mix well.
Cover with a tight lid and cook on a very low flame for a good 30 mins to 40 mins stiring inbetween as you go.
Now open the lid and increase the heat. Dry up the chicken, this will make the masala stick to the chicken and get fried.
Add in tons of coriander leaves and lemon juice to taste.