Both the institutes are pretty new. Secondly, I believe since you are getting Mechanical also, you shouldnt let go of the IIT Tag. Choose IIT jodhpur Mechanical.

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.

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