Hello aspirants,

with this score maybe you have less chanced to get better nit and iit.

However, if you want to do M.TECH in any college then i am giving you the link from where you can predict the college. 

https://engineering.careers360.com/gate-college-predictor

copy this link and paste another tab and fill few details then click on the predict tab.

Apart from this i would to tell you the document required during the counsling process.

Documents Required at Counselling

• Printout of CCMT registration form and the locked choices

• Provisional seat allotment letter as downloaded from CCMT website

• Self attested copy of GATE score card (2017 or 2018 or 2019)

• Photo ID proof as per government of India norms

• Original birth certificate issued by competent authority

• Class X (high school) board certificate as date of birth proof

• Class XII original mark sheet

• Original grade or mark sheets of qualifying examination for all semesters

• If degree is completed, original degree or provisional certificate

• Original category certificate for candidates belonging to SC/ ST/ OB categories, if applicable

• Candidate's undertaking regarding OB status in the required format

• Original certificate for PwD, if applicable

• Payment proof of seat acceptance fee of Rs 20,000 for first three rounds

• Original migration certificate of last institute/ university attended

• Three color passport size photographs

• Original conduct certificate from the head of the institute last attended

• Original transfer certificate from the head of the institute last attended

• Original course completion certificate from the head of the university or institute, in case result is awaited

• One set of self-attested photocopies of all original documents

For more information about the counsling go through this link shown below

https://engineering.careers360.com/articles/gate-counselling

hope it will help you.