Dear Apoorva,

If the candidate has been alloted a seat in the first round, he has two options:

• The candidate who is allotted the seat can join the allotted college and complete the admission formalities, after which he/she can exercise option to participate in subsequent round and also opt for up-gradation at the allotted college.
• Since free entry and exit rules apply for Round 1, candidates can surrender their allotted seats in Round I, if they wish to do so and can still participate in next round (Round 2)

For more NEET Counselling related queries,you can visit the link:

https://www.google.co.in/amp/s/medicine.careers360.com/articles/neet-counselling-faqs/amp