"The party has decided not to field its candidate in the by-election for Kannauj parliamentary seat in Uttar Pradesh," a party spokesman said in Lucknow.
He alleged that after the formation of SP government in the state there is an environment of anarchy and several welfare schemes have been closed.
The spokesman alleged that while people were reeling under incidents like rioting within three months of the SP government being formed, party supremo Mulayam Singh Yadav was appealing to people and opposition to give six months time to his son.
"Now continuing with its tradition of nepotism, the SP has fielded Dimple Yadav wife of UP CM Akhilesh Yadav as its candidate in Kannuaj by-election," he alleged.
The BSP spokesman said that now it was being said Dimple was being fielded for the development of Kannauj.
"People's experience of SP's "development" had been very bitter as Mulayam did not display political honesty, took care of only his home district Etawah while ignoring even his parliamentary constituency whether it was Mainpuri or Sambhal," he alleged.
The BSP spokesman said, "The SP considers prosperity of its family as development and this is its policy."
He said that to expose this policy of the SP and in the wake of appeal by party supremo Mulayam Singh Yadav, the BSP has decided not to field its candidate in Kannauj by-election.
With the BSP deciding to keep away from by-poll, it would be smooth sail for Dimple as the Congress and the Bharatiya Janata Party have already announced not to field their candidates.
The Kannauj by-election has been necessitated following the resignation of Akhilesh Yadav after his election to the legislative council.
Meanwhile, the BSP said it has also decided not to contest by-election to the Mant assembly seat in Mathura district necessitated due to the resignation of Rashtriya Lok Dal legislator Jayant Chaudhary.The latter resigned his assembly seat to retain the Mathura parliamentary constituency.