Political circles were abuzz on Saturday amid speculations that Congress veteran Kamal Nath may jump ship to BJP during his ongoing visit to the national capital.Nath’s son Nakul Nath, who is the only Congress MP from Madhya Pradesh, has dropped Congress from his social media bio, further fuelling rumours of a potential switch by the father-son duo.Separately, in Indore, Kamal Nath’s staunch supporter and former minister Sajjan Singh Verma also removed Congress from his social media bio.