Paneer South Indian Curry

250gm paneer
4 tbsp oil
1 large onion-finely chopped
10-12 curry leaves
3 tomatoes- chopped
1/2 tsp haldi
1 tsp Chilli powder
salt to taste.
1 tbsp lemon juice or to taste
1inch piece ginger
8-10 flakes garlic
1 tbsp khus-khus (poppy seeds)
2 tbsp cashewnuts-soak together with khus-khus in hot water
Masala
Finely roast and grind 1/2 cup fresh grated coconut(remove brown skin before grating)
1 tsp whole dhania seeds
1/2 tsp jeera
1 tsp saunf(fennel)
2-3 dry whole red chillies
seeds of chotti illaichi(green cardamoms)
2-3 laung(cloves)
1inch dalchini (cinnamon sticks)
1 tbsp oil