Hello aspirant , hope you are doing good.

So, to answer your question , Yes, you will definitely get back the security deposit money that you have paid i.e Rs. 30,000 , back if you don't get allotted a seat in any of the colleges. The money will be refunded back to the same bank account through which you paid the money and in the same method of payment that you used to pay the money.

If you want to know about all the possible colleges you can get into with your NEET rank, you can get it here:

https://medicine.careers360.com/neet-college-predictor

Hope this helps you. Good Luck !!