Hello karthi,

Government college salem is a good college to study. The infrastructure and labs are good and properly maintained. Well equipped classes and the campus is spacious. Almost all the faculties have phd degree. Placements facility is aslo good.

Government college coimbatore is also a good college but with 60% chances of placement which is quite good considering a governmnet college. Infrastructure is fine. 

Now the choice is yours.

Hope this helps.

Good Luck.