Hii Syed, the AICTE should not do this, if you have already refunded the amount last year then they should allow you to apply again this year. I would request you to talk to PMSSS helpline no. and also mail them regarding your issue. Request them that you were having a family problem and have not been benefitted last year and tell them to remove your data from the database so that you can apply this year.
Try calling them unless and until no one pics the phone. Do let me know once you talk with them