hey shruti 

your question is quite unclear . please abbreviate what are you asking . anyway counselling takes place in this way. you have to register . if your name comes in first merit list then you have to visit the college on the particular day as mentioned by the college. however if you can't reached at that day you cannot register in second round(in mostly colleges) .please contact the college opfficials for your queries and repost your question to get anser from others 

best of luck