Yaseen, 

If you expecting 170 marks in JEE MAIN your expected rank is around 14-15K.

In this rank you may get CSE IN

• NIT DELHI
• NIT PUDUCHERRY
• NIT MEGHALAYA
• NIT SIKKIM
• NIT GOA
• NIT ANDRA PRADESH
• NIT ARUNACHAL PRADESH
• IIEST SHIBPUR
• NIT AGARTALA
• NIT UTTRAKHAND

Or you may get some gfti's like JNU DELHI.

You can also try for IT branch as it is equivalent to CSE.  And you may also get in NITS. 

Hi Yaseen, firstly marks cannot determine your seat at NIT unless the rank list is published.But roughly, with the rank vs marks trait of last few years, you will get CSE at good NITs but NOT the best(top 5) NITs. The good NITs include IIEST SHIBPUR, NIT JAMSHEDPUR and so on.