1Heat oil in a frying pan and fry cumin seeds for 1-2 minutes.
2Add boneless chicken and cook until it turns white.
3Cover and cook for 8-10 minutes.
4Add onion slices and bell pepper julienne. Mix well and cook for 2-3 minutes.
5Add salt, red chilli powder, garlic powder, coriander powder, black pepper powder, paprika powder, and red chilli flakes. Mix well and cook for 3-4 minutes.
6Add red chilli sauce and tomato paste. Mix well and cook for 2-3 minutes.
7Spread mayonnaise on two bread slices.
8Place the cooked chicken mixture over one slice of bread.
9Top with grated mozzarella cheese.
10Place the other slice of bread on top.
11Spread butter on the outer sides of both bread slices.
12Place the sandwich on the grill pan and toast from both sides.