Sources said the decision was taken during a meeting involving senior BJP leaders and the RSS held at Chetpet.

"Kesava Vinayagan had questioned Nainar's alleged family politics within the party and raised issues relating to financial matters. He was also accused of not reporting lapses and organisational issues during K Annamalai's tenure to the high command," a source said. "In view of these concerns, the party asked him to step down, and he is expected to relinquish his organisational responsibilities shortly."

Sources added that the post of state general secretary (organisation) would remain vacant until the elections. "In several states, this key organisational post has been kept vacant. Tamil Nadu will also follow that pattern as the party and the RSS reassess the necessity of the position," the source said.