Use kumar a caste neutral surname, or verma, singh. All caste names were buddhist, verma is later form of baman, sharma is later form of saman. Gupta means hidden,safe protected. And NEVER TRY TO BILITTLE YOURSELF, NEVER LOOK DOWN UPON YOU. Never try to look at history through brahminical lense. I myself wasn’t aware of this, i knew brahmin bania, and i used to think that sc just means special category. But after 12th, i faced casteism in interview, “tumhara pura naam kya etc.” I learn about history through brahminical lense and went into depression, after some time when i focused on archaeological finding, inscription, manuscript and buddhism, i felt so good. All the best to you๐
Don’t change, embrace. You have great past, a Buddhist past. We’ve been called outcaste by brahminists, who destroyed Buddhism, so now be a good person and help to destroy it.