Dear Aspirant, 

Most of the counselling procedures have fkoat option which means you can keep the college secured as back up and try for better or favorable college in next round. Hence after knowing the colleges alloted in both rounds you can choose one. 

Hence If this option exists in the counselling you are taking part then surely utilize the opportunity. 

Or mention the specific counselling here for precise data. 

Hope this helps 

All the best