Cook chicken with salt and turmeric till they are completely cooked. Shred them into small pieces.
Heat oil in a kadai. Add in onions and saute for a couple of mins.
Add in ginger garlic paste and saute for 30 sec.
Add in salt, pepper, chilli powder and garam masala powder. Mix well.
Add in tomatoes and cook for 5 mins.
Add in tomato ketchup and mix well.
Now throw in the capsicum and saute them in the masala for a couple of mins.
Add the cooked chicken in and give a good stir.
Your masala is done.
Now take a bread slice. Spoon some filling in the center and cover with another bread slice. Drizzle some oil over the bread and place it on a preheated grill pan.
Let it cook on both side till you get nice grill marks.