Dear Aspirant,

     I appreciate your interest towards petroleum engineering and I'm here to help you regarding your query !!

       So, the actually fee cannot be predicted or said to pursue diploma inpetroleum engineering. It changes with every college and there are many colleges all over india. But it starts from thousands and reaches lakhs in some Colleges. I have a list of top-notch colleges where you can get admission,

• Vels University, Chennai.
• Mewar university, Rajasthan.
• NIMS University, Jaipur
• APEX university, Rajasthan.
• MGIMT, Lucknow.

    These are some of the best colleges in India to study petroleum engineering and rhere are many also, all depends is where you reside and how much you can afford. Don't worry, do let us know if you have any questions or concerns related to this and we are here to help you out.

Be positive and stay tuned for more information and have an eye on official websites too.

Also, Refer this link below for more information and details,

https://www.careers360.com/colleges/government-polytechnic-college-jodhpur/diploma-in-petroleum-engineering-course

Hope you find my answer helpful !!

All the very best wishes for your future endeavours !!