Wash urid dal properly in clean water. Soak it in sufficient water for 2-3 hours
Remove excess water from soaked dal and grind, it in grinder in to a smooth fine paste
Add finely chopped ginger, chopped green chillies and salt
Mix well (beat ) dal mixture till fluffy
Heat sufficient oil in heavy bottom deep pan
Wet your hands with water and prepare Vadas on hand and carefully slide Vada into hot oil
Deep fry all Vadas till golden brown and start floating on top
For Sambhar
In a pressure cooker, take soaked Arhar dal, salt, little turmeric powder, sambhar masala and all mixed veggies
Add some water and pressure cook for 2-3 whistles
Later add tamarind pulp in to sambhar. Heat one tablespoon of oil, add 1 teaspoon mustard seeds, few curry leaves and add this tempering in to cooked sambhar, mix well and yummy sambhar is ready
For Coconut Chutney
In a blender take grated coconut, green chilies, chopped coriander, salt and some water, blend well into smooth paste. Later, heat some oil, add few mustard seeds and curry leaves, lastly add this tempering to chutney