Dear Aspirant,

     I understand your concern and I am here to help you regarding your query !!

       So, firstly Pondicherry university is one of the too rated colleges in Tamilnadu and the fee structure is as i mention here, the fee for Mechanical engineering is around 1.10 lakh per year and the hostel fee comes around 50,000 and it depends on your choice of what you choose, and the mess charges aslo differ. 

Do refer these links below for more information and details,

http://www.pondiuni.edu.in/content/fees-structure

https://www.careers360.com/colleges/pondicherry-engineering-college-puducherry/amp

Hope this helps !!

All the very best wishes for your future endeavours !!