Calcutta, May 11: Narendra Modi's promise of co-operation and the apparent bonhomie with Mamata Banerjee have put the state BJP in a fix on how to up the ante against the Bengal government.

Although those at the helm in the state BJP stressed that the Prime Minister conducted himself keeping in mind the federal structure of the country, a section said some in the party felt Modi's staying away from attacking the chief minister as he had done during the Lok Sabha poll campaign could confuse the ranks on strategies.

"A confusion has been created among our ground-level leaders and workers on whether our anti-Trinamul movement would suffer or not," said Dilip Ghosh, a BJP general secretary.

After the BJP's lacklustre show in the civic polls, state leaders had announced a series of anti-government programmes across the state as part of their plan to strengthen the organisational network.

Sources said the leaders had unanimously agreed to attack Mamata on the alleged failures of her government.

But the leaders conceded they were confused if the "attack Mamata" strategy would work at all after yesterday's programme in Asansol.

Not only did Modi praise Mamata for her role in supporting the constitutional amendment to exchange enclaves between India and Bangladesh, he also promised help for the development of Bengal.

Gopal Sarkar, the BJP's president in the north suburban district that comprises Dum Dum, Salt Lake and its neighbourhood, said at least 50 party workers had called him over phone since this morning, asking if they should continue with the anti-Trinamul movement.

"I had to explain to them all over again that there would be no let-up in our anti-Trinamul agitation. Instead, it would get more sharpened in the coming days," Sarkar said.

Although the leaders said nothing had changed, some BJP insiders pointed out that Modi's "softened stand" had diluted their attack that had started gaining momentum over the past few days.

"Modiji had built the base of our attack on the chief minister on the Saradha issue.... Now, he is giving her certificates. Can we go after her again?" asked a young BJP leader.

In an apparent move to clear the air, the leadership today sent out a directive to the party district presidents across the state to carry on with their anti-Mamata movement and highlighting alleged Trinamul-sponsored terror.

"We have told the district units to stick to their anti-Trinamul movement and to send out a message that we will fight the ruling party tooth and nail," state BJP president Rahul Sinha said this afternoon.

Amid the confusion, Sinha seems to be on a firm wicket for the time-being, despite a buzz that he might be replaced because of the BJP's poor show in the civic polls.

Contacted, the BJP's central minder for Bengal, Sidharth Nath Singh, ruled out replacing Sinha. "Rahulji will continue as state unit president till the next year's Assembly polls," he said.