At a press conference, BJP leader and Union minister Smriti Irani said the rally, which is expected to see the presence of a number of opposition leaders, "exposes" the saffron party's rivals as it suggest that they cannot fight it on their own.
Addressing a press conference here, she said the rise in the BSP's popularity after its alliance with the Samajwadi Party has created unrest among some parties and leaders.
Sources in the BSP said the two leaders discussed political strategy ahead of Lok Sabha elections due this summer.
"This alliance will promote anarchy and insecurity only. It was done due to the fear (of the BJP government returning to power) and the people will not accept it," the chief minister said here.
"Forget past differences and ensure victory of all joint candidates of the SP and the BSP. This will be my ideal birthday gift," Mayawati said at a press conference here on the occasion of her 63rd birthday.
Nath was answering a question on Mayawati's concern over 100 per cent benefit to farmers under the scheme, including those who had borrowed from money lenders.
West Bengal Chief Minister and TMC supremo Mamata Banerjee had earlier in the day said that she had a telephonic conversation with Samajwadi Party (SP) chief Akhilesh Yadav and that he had assured his presence at the rally.
Its spokesperson R P N Singh said the BJP wanted the secular parties to remain divided in the politically crucial Uttar Pradesh before the 2019 Lok Sabha election and contest independently so that their votes could be split. Its attempts have proved successful, he added.
"It is not just UP but the entire country where the message of alliance has gone...(now) the people of UP and Bihar will decide as to who will come to power at the Centre," Tejashwi told newspersons here after meeting SP president Akhilesh Yadav.
Some political observers believe that Congress being kept out is part of the Opposition’s strategy
The Rashtriya Janata Dal leader arrived in the state capital Sunday night and met the Bahujan Samaj Party chief, during which the two leaders exchanged greetings, RJD sources said on Monday.
Massive preparations are underway to celebrate the occasion in the state capital, with big hoardings and blue (party colour) banners being erected near the streets and around the party headquarters and her house here.
The alliance could be a formidable challenge for the BJP which is on the back foot. Going alone is likely to benefit the Congress.
P Chidambaram said he hoped that the agreement between Akhilesh Yadav and Mayawati was not the final word.
An RLD spokesperson claimed that seats were not an issue and if any party had to be included in the alliance, a way could always be found.
The two parties have agreed to an in-principle alliance ahead of the parliamentary elections, SP's national spokesperson Rajendra Chaudhary had said last week.
Senior Congress leaders believe that fighting the polls alone in Uttar Pradesh would give the party a chance to rebuilt itself from scratch and help galvanise the cadre
A formal announcement on the gathbandhan between the two key parties in Uttar Pradesh is likely later this month, said a SP spokesperson.
Responding to a query, the former Rajya Sabha member added that the Congress did not want division of votes against the BJP in the upcoming general elections.
Congress delegation is expected to meet Madhya Pradesh Governor Anandiben Patel at noon to stake claim to form government
Referring to Uttar Pradesh Chief Minster Yogi Adityanath's recent claim that lord Hanuman was a "Dalit", she said the top leadership of the BJP has "stooped to such a level for votes that they are not even sparing the deities".
Condoling the death of those who died in the violence, the Dalit leader said there was a need to establish a rule of law to prevent mob attacks.
Congress is hopeful of dethroning the BJP, riding on a possible tide of anti-incumbency in the state. But BSP not allying with it could impact the outcome
However, Mayawati did not specify the number of seats Congress had offered BSP for the Madhya Pradesh polls
State BSP president Pradeep Ahirwar said the party will vastly improve its tally and win 32 seats, and can even think of heading the next government