Colleges in Assam

NIT-Silchar,Mechanical Engineering will be difficult to get,
Based on your rank you can expect colleges like -
Institute of Technology, Guru Ghasidas Vishwavidyalaya
Sant Longowal Institute of Engineering and Technology
J K Institute of Applied Physics and Technology
Indian Institute of Information Tech

The fee structure for Indian School of Business Management & Administration, Guwahati - Graduate Diploma in Management is mentioned in the following link. https://www.shiksha.com/college/indian-school-of-business-management-and-administration-gwalior-33886

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7476690
Check this out.
Hope this helps.
Best of luck.

Hi Pratibha,
Admission process of Tezpur University:
Register and Apply
Interested candidates can apply online/offline with required information.
Entrance Test
Candidate has to appear for Tezpur University Entrance Examination (TUEE).
Final Selection
Candidates are selected based on marks obtained in Tezpu