You can get your admission fee back as a refund after giving a proper application to step down from the admission process. Haldia Institute of Technology also follows this. 

It’s just a matter of how much time it is going to take. You need to keep documents like the receipt for the first semester, clearance certificate, and ID proof handy with you. These documents can be submitted to the finance or the accounts office of the Institute.

This process can be done online too. Since last year Haldia Institute of Technology has been transferring back the refund for the admission fee through NEFT. The transfer mostly happens on the same day when the refund application is submitted. 

It must be noted that the college will deduct an amount of 2000 Rupees as admission processing fees.