Hii hiridya

You are expecting a great score where as under the state quota you have low chances getting the college where as you even have the obc category so due to that you have chances get ESIC 

I would suggest to get the college predictor that would help you

https://medicine.careers360.com/neet-college-predictor

REGARDS

hi hridya AP

sorry but you can't able to get admission in ESI in kollam government medical college with 490 marks             

you can go on this links to check neet 2019 cutoff state wise

https://medicine.careers360.com/articles/neet-cut-off-for-government-colleges