First to marinate the chicken, mix all the ingredients together and pour them over the chicken.

Give the chicken long little cuts for the marinade to penetrate and mix well.

Let it marinate for at-least an half hour and at most 24 hours.
Heat oil in a pan and grill the chicken on both the sides till it's cooked.

Slice the chicken and keep aside.

For salad

In a bowl add onion, tomato, lemon juice, salt, chat masala, red chilli powder and cumin powder. mix and keep aside

For Roti

Combine the wheat flour, ragi flour, bajra flour and salt and knead into a soft dough using 3/4 cup lukewarm water.

Divide into 7 equal ball sized and roll into chapatis.

Heat a non-stick tava and cook both the sides of the chapati using 1/2 tsp of oil for each chapati.
Remove on a serving plate and smear a thin layer of green chutney and place chicken and salad.

Make a tight wrap and cover with paper or aluminum wrap.