Hey there

Yes you can apply for refund and it is clarified by Directorate of technical Education Chennai. The candidates who ever want  refund of initial deposit has to fill application for it. The candidates need to mention name bank account details and college alloted details in the refined requisition letter.

For more: https://www.google.com/url?sa=t&source=web&rct=j&url=https://static.tneaonline.org/docs/Refund_Instructions.pdf&ved=2ahUKEwjDmIqr6uDzAhWawTgGHcSfBSoQFnoECAQQBg&usg=AOvVaw0ZSd0gpgpzWaX_fnCyd7dB