Both the institutes are pretty new. Placements of CSE of IIIT Naya Raipur are more or less comaparable to placements of Mechanical and Electrical Departments of Newer IITs.

Secondly, I believe if you are getting Mechanical, you shouldnt let go of the IIT Tag. Choose IIT jodhpur Mechanical over IIIT Naya Raipur.

If the choice was between institutes like IIT jodhpur and IIIT Allahabad or NIT Trichy, then maybe decision could be taken otherwise.

One of the best things in IIT Jodhpur is the newly developed infrastructure and Air Conditioned Hostels. Rajasthan being somewhat near to Industrial Districts in Delhi, NCR, Gujrat, Punjab and Haryana further ensure good placements in core branches.As far as Mechanical is concerned Tata Motors, Hero Motocorp,Maruti Suzuki are regular recruiters.

Of course its your choice, if you want to study CSE, you might always choose IIIT Naya Raipur or some other new IIIT over an IIT ir NIT,but decide wisely. At the end its your career and the branch you choose, CSE or Mechanical should take you into confidence since Day 1.

For more information and college prediction do follow the links below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer