My surname is Mukhopadhyay. I belong to Bhardwaj Gotra. My maternal side's surname is Bandopadhyay and they belong to Kashyapa Gotra. Is it true that all persons with the surname Mukhopadhyay belong to Bhardwaj Gotra?
In general, is it possible to know the Gotra from the surname alone? What are the relationships between different Hindu surnames and Gotras?