Start by toasting gram flour in a dry pan till it turns nutty and couple shades darker. Your house will be filled with the aroma. Switch the heat off and set aside till use..

First take your cleaned chicken and make deep slashes in them.

In a large mixing bowl. Take chicken, and add in all the ingredients given in the ingredients except gram flour and butter.Mix well. Cover and let it marinate it for 2 hours.

Now when the marinating time is done.Take the chicken out and add in toasted gram flour and mix well.

Preheat the oven to 250 Degree C.

Line a baking tray with foil. Brush the foil with oil. Arrange the chicken in the tray and put them in oven for 15 mins.Take them out and baste them with butter.

Reduce the oven temp to 150 degree C.Put them back into the oven for 15 mins.

Now flip over and bake it for 15 mins. Take it out and baste with some butter, bake again for 15 mins.

Now remove the tray from oven and sprinkle generous amount of chat masala over the hot chicken and serve immediately.