Hello vaishali

If you are talking about 61 marks ( nearly 216 marks ).

With this marks your approximately rank will be around 7-9 thousand ( will vary accordingly; so wait for exact ranking.) But with this rank you have many options with you.

You can go in top nit s( branch may vary depending upon your category and state) like NIT Allahabad

Nit jaipur

Nit kurukshetra

Etc .

You can see last year's cut offs for specific college and branch and have a reference about it.

So good luck.