5 ingredient garlic butter baked salmon

INGREDIENTS: 5 medium size potatoes, cut into thick round slices (katli) 3 tbsp of cooking oil 1 tsp of cumin seeds 1 tsp of mustard seeds 1/4 tsp of asafoetida powder 1 medium size onion, chopped 1 tbsp of ginger&garlic paste 1/2 tsp of turmeric powder 1 tsp of coriander powder 1/2 tsp of chilli powder 1/2 tsp of crushed black pepper 1/2 tsp of garam masala 1 and 1/2 tsp of chilli flakes salt to taste some chopped coriander leaves