Theory about Rudhra character
I assumed Rudhra was a local street dweller or a boatman doing odd jobs when I first saw the teaser. I ignored the obvious since it would be dark for a mainstream blockbuster and not pleasing for most viewers to look at. Then I saw the set photos with wood lying around and realized it would be addressed, the recent sketch confirmed it for me.
It is well known that Varanasi is widely regarded by many Hindus as an auspicious place to die and be cremated, because dying there is believed to help the soul free from the cycle of rebirth. I think Rudhra is a cremator from the Dom community, who manage cremation duties and pyres at the ghats. The sketch is of cleaning the pyres after the funeral rites.
A note to the Producer KL Narayana: Before you also get burned, save yourself. If the budget is really what they claim, you should withdraw as much money as possible, because this film will likely earn what the usual oppression films in other industries earn. Telugu audience should be the last to expect support for this.