BJP leaders, preferring anonymity, said with Congress losing support in the wake of corruption cases and scams against the UPA government, the party is now banking on AAP to build a credible counter to the right-wing party.
Party leaders concede AAP may cause some damage to BJP's prospects in Lok Sabha polls in some urban constituencies.
"The AAP-Congress alliance is not going to last its full term though Congress may not pull the rug till the Lok Sabha polls are over," a BJP leader said.
He is seen as being more of an activist- even an "anarchist"- who will find it difficult to fulfill most of his poll promises.
BJP is hopeful AAP will hold the Congress-led Centre responsible for any roadblocks it hits in governance and this should help the opposition.
Meanwhile, Aam Admi Party's "volte face" on accepting support from Congress- a party it had attacked all along on issues of corruption and strongly maintained it would never have any alliance with it- invited attacks from BJP.
"Aam Admi Party owes people many answers. Kejriwal had said he will never accept Congress support. Why is there a U-turn and what is the deal behind accepting Congress support now? This is hypocrisy," Javadekar said.
