Hey!

yes, security money will be refunded to the candidates to the same accounts from which it has been deposited, if the candidates are not alloted any seat or candidates soes not want to get admission in  the seat alloted. But the refund procedure will start only after the counselling process is over. For more info, viist the pdf link given below:

https://www.mcc.nic.in/MCCSS/Documents/RevisedFAQsSS882019.pdf

OR

https://medicine.careers360.com/articles/neet-counselling

thankyou