AAccording to your rank and OBC category it totally depend on colleges merit list and admission procedure that you get the admission. 

Since you are in OBC category then also  your rank is not so good that you definitely get the admission. 

But i am sure that you may get admission in following college surely. 

Vadodara institute of engineering, vadodara

Itm universe, vadodara

Parul university, vadodara

Sigma institute, vadodara

Then also there are other colleges you definitely get the admission 

Yes definitely you can get government colleges with your score in JEE Mains 2019. Vijay congratulations you performed extremely well in the JEE Mains 2019. You can predict your college with careers360 college predictor on the basis of your rank in JEE Mains 2019.

https://engineering.careers360.com/jee-main-college-predictor