Soak soya chunks in salted hot water for 15 minutes. Drain and squeeze. Make a small cut in each chunk with a knife to put filling. Mix all ingredients of the filling except chilli powder. Put small lungs of the filling in each soya chunk. Then sprinkle salt and chilli powder on the stuffed soya chunks. Prepare a batter for pakoras by mixing all ingredients. Dip each stuffed soya chunk in it and deep fry until crisp and golden. Serve hot with coriander chutney.