The Bharatiya Janata Party on Monday indicated that it could take disciplinary action against former Delhi chief minister Madanlal Khurana for publicly demanding party president Lal Kishenchand Advani's resignation.

"The Khurana issue is definitely a matter to be looked into seriously.  The party president will take appropriate steps," BJP Spokesman Prakash Javdekar said.

Sources said Advani was upset over Khurana's public statement not only demanding his resignation but also expressing his inability to work under him.

As for others including former presidents Bangaru Lakshman and Jana Krishnamurthy as also parliamentarian Pyarelal Khandelwal, who had demanded that ideological issues be discussed at the Chennai national executive, sources said they had only demanded a debate though they could have avoided making it in public.

Sources said Khurana had defended Advani's Pakistan visit and had lavished praise on him as late as June 23 at Lakhanpur in Jammu.  It was only after the party decided not to nominate him from Gujarat that he had changed his stand.