Hello

I do not think it will be a problem if you do not have your 7th grade marksheet with you unless th euniversity has specifically asked you to bring it. In most of the institutes the onle documents required are your 10th and 12th results along with domicile certificate and caste certificate if applicable. You may also be asked to bring ews certificate incase applicable nad medical certificate if you want a seat allotted in th ehostel. All the best!