Spicy gravy for veggies.

Take a lot of dried chillis - soak em in water for 10 minutes.
Take onions, garlic, ginger and blend them in a mixer. Add the chillis and blend them too.
Take the entire gravy and fry it in oil. Add jeera powder, salt and some aamchur.
Add vinegar and lime.
In it put in potatoes and let the whole thing cook till the potatoes are cook.
Same gravy can be used for paneer/mushrooms too.