As I was pregnant I should attend the college during certificate verification

You did not mention the Examination regarding which you are asking about. But most counsellings require Candidates to report in person for Document verification. There are no exceptions in regards to this. And so if you missed on being present in person for document verification, unfortunately, nothing can be done about it. They do not allow a 3rd person to verify the documents on behalf of the Candidate. So if you wrote the exam and if you want to take admission, it is you who has to appear in person for document verification. You cannot send anyone else. Or if you skip it, they wont allot you a seat. If already allotted, the seat will be cancelled.