With a NEET score of 316, getting a seat through CENTAC in round 2 or round 3 mainly depends on your category, the number of seats available, and the cutoff in Puducherry colleges. Generally, for government medical seats, the cutoff is higher than 316, but there are chances in private colleges or for certain categories if seats remain vacant in later rounds. Round 3 usually happens if seats are left after the first two rounds, so it cannot be fully confirmed but you should definitely keep checking the allotment list for each round.