The BSP’s elevation and the BJP’s downslide have upset Mamata Banerjee’s calculations, too.

The Trinamul Congress leader had been trying to renew her old ties with the NDA. Out of the blue, she had landed in Delhi to enquire about the health of former Prime Minister Atal Bihari Vajpayee.

Mamata had expected the BJP to perform well in Uttar Pradesh. A resurgent BJP would have impacted politics at the Centre and been an important ally for her.