It's compulsory to attend on that day itselg

If not try to contact them

Dates would be said later for left ones

Hope this helps. All the best

No.you will not able to get another date.you should attend the certificate verification on the scheduled date only.

Some documents are compulsory on varification dates so don't  miss documents. Yes some not important documents are verify after the reporting date. Its possible but compulsory documents verify on reporting time.

No there is no such provision however sometimes they declare new dates for some left candidates.

Good luck and have a great day!!

Feel free to ask anything :p