Take the chickpeas in a microwave safe bowl. Add 2 tsp chaat masala, chopped tomato, chole masala, salt to taste (chaat masala already has salt), 2tbsp water. Microwave covered on high for 5 minutes. Remove and mash with fork or pulse couple times in the blender to get a course and chunky paste.
Take the above paste in a big bowl. Add all the remaining ingredients except the chutneys and the sev.
Now add about 2 tsp of red chutney and 2tsp of green chutney.
Mix all ingredients well using a spatula or clean hands to form a big ball like dough. Should be able to make small balls.
Now take about lemon sized chunks of the mixture and shape into balls.
Place the balls on a cookie sheet and bake at 350F for about 7-8mins. This step is entirely optional. The baking only adds some crispiness to the texture and enhances some flavors but the since all ingredients are already cooked, this step can be skipped.
Now in another deep bowl combine 1/2 cup of red chutney and 1/2 cup of green chutney and mix well.
Take the 1cup of fine sev in a shallow dish.
Now take one ball and dip it in the chutney mixture to coat it evenly and then roll it in the sev until the sev sticks to it all around. You just made your first chaat bite!
Carefully place it on the serving dish. Repeat with all other balls and serve the chaat bites along with the remaining chutney.