Parents are parents, they will always be. They have taken care of us when we needed them the most and it is perfectly natural for them to expect that we take care of them when they need us the most. If you feel pressured and do not want to send them financial help just let them know. We should help our parents out of love and respect not out of compulsion. If you do not feel compelled to help your parents (either they do not need or you cannot) let them know. Do not take parents comments out of context when they say falana le ta yeti pathauncha. Try to put yourself in their shoes and you would have done the same thing if you were in your dad's position.