Hello aspirant,you are free to cancel it.  even if you cancel an alloted seat you are allowed to give NEET again. There would not be any issue regarding the NEET . Any student who fulfill the criteria is eligible to appear. Irrespective of his previous records.

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If you are an Engineering or medical aspirant, it is a great opportunity for you. Take the test, perform the best, avail the scholarship and win prizes.

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All the best..