Electrical and Electronics Engineering

For that, you should discuss with your year co-ordinator and HOD with a valid reason as why you want to change your department.

Go through this link. You might get an idea.
https://www.google.co.in/url?sa=t&source=web&rct=j&url=http://m.htcampus.com/college-search/part-time-b-e-or-b-tech-in-electrical-engineering/pune/&ved=0ahUKEwiG0-jA0djVAhUIrI8KHXIhDd4QFgieATAG&usg=AFQjCNFU2dfg8wQKVePZzOpWFB2hImIDAQ

Hello Kasthuti,
The placements are really good and nearly 80 Companies have visited the campus for placements last year.
That includes many MNCs.
For EEE, there are good amount of core companies too.
You may refer the links below:
1) http://www.rajalakshmi.org/placement-record-2016-2017.php
2) http://www.rajalakshmi.org/placement-recruiters.php