His the best Housemate in this series by a mile.
He reminds me of Chris from BB13 who was equally as fun and insane, yet was also highly underrated by the BB fandom imo, and also short lived.
But yeah Karthik's a legendary Housemate that will only be appreciated when he gets evicted. It's ashame really that these types of Housemates don't get appreciated when they're actually in the house.