Samajwadi Party leader Mohammed Farooq Ghosi has reportedly written a letter to party chief Mulayam Singh Yadav asking him to nominate Yakub Memon's widow to the Rajya Sabha.
The controversial letter cost Ghosi his post as the vice-president of the party's Mumbai unit.
The SP leader described the wife of 1993 Mumbai blasts convict, who was was hanged on Thursday, as "helpless".
"Raheen was in jail for many years. How much she would have suffered.. Today I find Raheen helpless and there are many such Muslims in the country who find themselves helpless and for whom we have to fight for. We should make Raheen a Rajya Sabha MP and make her the voice of weak and helpless people," the SP leader wrote to Mulayam Singh yadav, according to the Press Trust of India.
"The court punished Yakub Memon, but his wife and daughter are innocent. I have written to Mulayamji to make her wife an MP. Mulayamji has always stood for the Muslims and the poor people of the society so this will send a good message," Farooq Ghosi was quoted as saying by ANI.
The move is likely to draw sharp reactions for the party, given the sensitive nature of the issues.
The Samajwadi Party has reportedly removed Ghosi from the post of a VP at the Mumbai office.
Party leaders such as Abu Asim Azmi called Ghosi's comments "irresponsible".
"He (Ghosi) has not consulted the party before making irresponsible comments. He has written the letter in his personal capacity. He will be asked to explain his stand, following which necessary action will be taken against him," Azmi told PTI.
Other parties accused the Samajwadi Party of playing vote-bank politics.
"Every person has the right to suggest something to his party. But every leader needs to show some constraint while making suggestions. SP has to clear its stand and if he is acting against party line, then party should take some serious action. This is sheer exploitation of votebank politics," BJP leader Madhav Bhandari reportedly said.