Boil soba noodles in salted boiling water as per package directions. Drain and set aside.
Heat oil in a pan, add in onions, capsicum and saute for a min.
Add in ginger garlic paste and saute.
Add in tomatoes and cook for 2 mins.
Add spice powders, ketchup, salt and mix well.
Add chicken and mix well.
Add in 1/2 cup to 1 cup water and mix well.
Add cooked noodles and mix well.
Cover and simmer for 2 mins.