The AAP leader had come with members of the Narmada Bachao Andolan (NBA) at the Indian Women Press Corps (IWPC).
As the conference began, a young man claiming himself to be Vishnu Gupta and chief of Hindu Sena entered the conference room and raised slogans against Bhushan.
He urged Delhi Chief Minister Arvind Kejriwal to throw Bhushan out of the country.
Aam Aadmi Party volunteers guided the man out and closed the main gate of the IWPC. By then, the press conference got disrupted.
Police said they were looking for a complaint from the AAP.
On Jan 8, dozens of Hindu activists attacked the AAP head office in Ghaziabad to protest Bhushan's controversial remarks on army deployment in Jammu and Kashmir.
--IANS (Posted on 13-01-2014)