New Delhi, Dec 10 (PTI) Delhi Chief Minister Arvind Kejriwal on Saturday said the "heavy BJP machinery" deployed during campaigning made the MCD polls the toughest election contested by the Aam Aadmi Party so far and accused the party of trying to "buy" AAP councillors.

Addressing the newly elected councillors, Kejriwal claimed that the BJP has started telephoning the AAP councillors and offering them up to Rs 20 lakh.

"This election was very very tough. A few people say it was an easy election, but it was not. The way they conspired against us and the way they used state machinery against us, it was the toughest elections we ever contested," Kejriwal claimed.