Hello,

From your profile it seems you belong  to Andhra Pradesh, hence I presume your query is for Group I exam, it's conducted for various posts such as deputy collector, assistant commissioner of state tax, deputy superintendent of police, administrative officer, assistant audit officer to name a few, the eligibility criteria is passed graduation in any discipline from a recognized university, there is no specific aggregate required in this case, hence there is no restriction as such in case of stream, and the same rule applies to appearing for UPSC exam as well.