Snack is a food that is not meant to be eaten like a main meal. Eating snack is a purpose of providing a brief supply of energy for the body between meals. Indian snacks are quick to prepare, spicy, usually fried. They can be eaten anytime between meals oftenly with tea or as a side dish.
Most people think that eating snacks between meals will loose their appetite, and snacks are junk food. But if the right food is offered at the right time, snacks can play an important role to your hunger and gives nutritional value.
Most common snacks in India are chat(spicy mixture), pakodas, wadas. But these can vary from place to place.