JEE

With 80 percentile in JEE Mains, you can consider the following government colleges for B.Tech:

Gurukul Kangri Haridwar

Assam University, Tezpur University, Sant Longowal Punjab with branches like civil engineering

Lovely Professional University

DIT University

Jagannath University NCR Haryana

SAGE University Bhopal

NIMS University

I.T.S Dental College, Murad Nagar

Congratulations for your rank, you can easily get lower branch of NITs from north east. 

ie.

NIT Sikkim

NIT Meghalaya

NIT Mizoram

NIT Agartala etc.

Yes, the difference in the name will cause problem in document verification, but it can be solved with a simple affidavit. It should mention both the names of your father and should declare:

That both these names pertain to the same person

That it is true to your knowledge, and

That you're accountable for any discrepancies.

The above should get the affidavit notarized by a first class magistrate.

As It is mostly depandent on 12th percentage and JEE main mark (sastra will calculate like this 12th percentage * 0.75+jee main mark * 0.25)

As you have already got 98.6% in boards, hopefully you will get CSE in Sastra University.

According to me, going for the direct admission in BT.ech CSE would be a better option since you have good percentile in JEE mains. Thanks

It's difficult to get admission in UEM for CSE branch as the University take students on the basis of their JEE Mains rank only and your rank is quite low for it.

Though you can apply for other Universities like NIT Goa, NIT Agartala.

In Jamia Millia Islamia University  admissions separately along with taking the JEE (Main) 2023 exam. Admissions will be done based on the All India Rank obtained in JEE (Main) 2023.

So please I would request  you to please mention your rank in JEE Mains exam then I will be provid you accurate information regarding to admission in this university .

If this is helpful so please upvote 

For Sastra, there is no Cutoff and no minimum percentile required in JEE MAINS.

It is based on 12th percentage and JEE Main mark (SASTRA will calculate like this 12th percentage * 0.75+ JEE MAIN mark * 0.25)

Total- 165 marks.

Based on your score out of 165 they will alot a admisssion.

Therefore, there is no minimum percentile you need.

However, you need to score good marks in both (12th and JEE MAINS).