First put oil into pan & hot it. Add seeds, spices and allow to splutter.
Add onion, garlic, chilli & ginger paste one by one and mix well untill they
change their colour.
Add white paste & mix it. After few second, add tomato
gravy & stir it. Add all masala & mix well until the oil separate out from paste.
Stir it untill they turn into thick paste. You can store it for long time.
When you use this gravy for the dish, first take gravy, make it liquid with
the help of water or buttermilk and then use for your dish.