Mechatronics Engineering Eligibility

Not a good experience. Crowd is awful, Bad Placements, Poor management, Poor locality, Poor internal grading system, Politics, Poor practical exposure, Poor marking scheme, Poor sports facilities, Take unnecessary fines, Golddigger college, does not care about the facility.

I think your question is wrong you 140 cut off marks in entrance exam, by the way I will give a link that will help you to find the college according to your rank:
https://www.resonance.ac.in/reso/news/JEE-Main-Branch-Predictor.aspx

For lateral entry, you have to qualifying the LEET entrance exam then you got lateral entry in good college for BE in electronics.

Yes you can choose mechatronics after your Diploma in electronics as it is combination of both electronics and mechanical. It is a very good field. Also one can change the field of study after Diploma.

Mechatronicsis a multidisciplinary field of engineering that includes a combination of systems engineering, mechanical engineering, electrical engineering, telecommunications engineering, control engineering and computer engineering. It has very bright future in India.
I have no idea about colleges in Pune sorry.

Hi Sneh,
For list of top colleges in West Bengal and Orissa, kindly refer the link below:
https://goo.gl/jQeKNg
Kindly, filter out the branch / college / location as desired from the above link.
I hope it helps. Please, feel free to revert.
Wish you luck.