Judges has to make decisions based on all other factors to pick good singer.
Yes, I agree that Richa should be more careful and she should gain some confidence so that she doesn't get nervous, otherwise, it will hurt her in next rounds. she has to show some maturity, which she is not showing at the moment. No body gets favour from judges for bing Punjabi or Bengali or something else. Its normally when time to vote, general public does more favouritism by rigions, not judges. Judges try to be as fair as they can.