Hi Sumit,

Yes you definitely can do that. Simply fill the choices of the branch you want from that particular college in the decreasing order of your preference and if your rank is sufficient enough you will be upgraded to the best one. Not only COMEDK but all counselling procedures have this feature.

Good Luck !!

Yes ofcourse you can do the same as mentioned. There is no offense doing it. Since its upon you whether you fill choice and what choices so you can definitely mark anu and just be patient and have faith as you hold fair chance to get an admission in a reputed College. Good luck!