As per the official website of IITM Gwallior, the documents required for Online reporting are provided below:

1. Allotment letter for admission
2. Institute other fee receipt
3. X Class Pass Certificate / X Marks Sheet
4. XII Pass Certificate / XII Marks Sheet
5. Study and Conduct Certificate
6. SAT Score Card / SAT Score Report
7. Transfer Certificate
8. Migration Certificate
9. Passport,VISA
10. Medical Certificate

For more information visit the official website:

https://www.iiitm.ac.in/index.php/en/component/content/category/97-admissions?Itemid=437

To know more about IIITM Gwallior visit the link below:

https://www.careers360.com/university/atal-bihari-vajpayee-indian-institute-of-information-technology-and-management-gwalior

I hope this answer helps. All the very best for your future endeavors!