The 82-year-old mother of a BJP leader in West Bengal, beaten up in February allegedly by Trinamool Congress workers, passed away on Monday, according to several media reports.
Her death, coming just days the conclusion of the first phase of Assembly polls in Bengal, has only added to the war of words between the BJP and TMC.
While BJP said Shova Majumdar succumbed to the injuries she sustained in the attack and that the TMC's slogan of 'Ma, Mati, Manush' had been "bloodied", the ruling party hit back, saying the saffron party was "peddling a narrative", NDTV reported.
The TMC, denying the involvement of its activists in the attack, said Majumdar might have died due to age-related ailments, as per PTI.
BJP workers on Monday staged a protest in the North 24 Parganas district's Nimta area, the PTI report added.
Union Home Minister Amit Shah, who has addressed several rallies ahead of the polls in the politically crucial state, on Monday condoled Majumdar's death.
BJP president JP Nadda also tweeted his condolences over Majumdar's death.
Union minister Debasree Chaudhuri, addressing a press conference in Kolkata said, "She (Mamata) is doing processions, repeatedly attacking BJP, claiming that she was being attacked... Today, Ma has been bloodied, Mati has been bloodied, Manush has been bloodied. What will the state government do?"
She added that Majumdar had been receiving treatment in a hospital for 27 days.
On 28 February, the BJP had claimed that TMC supporters had beaten up its district member Gopal Majumdar and his mother, Shova. "A video of Majumdar, narrating her painful experience with a badly swollen face, was shared by the BJP on social media last month," the NDTV report added.
Chief Minister Mamata Banerjee asserted that the TMC doesn't support violence against women, but hit back at Shah on the issue.
Mamata added that she is not aware of the actual reason behind Majumdar's death.
"I don't know how the sister has died. We don't support violence against women. We have never supported violence against my sisters and mothers. But the BJP is now politicising the issue. Amit Shah is tweeting and saying, 'Bengal Ka Kya Haal hain'. Why does was he mum when women were attacked and brutalised at Hathras in Uttar Pradesh?" she said while addressing a rally in Nandigram.
Calling her death a tragedy, TMC MPs Derek O'Brien and Sougata Roy denied the party's involvement in the incident.
Roy was quoted by PTI as saying, "The incident has no relation with politics and the BJP is unnecessarily trying to cash on a death. Any death is unfortunate and tragic. TMC men were not involved in any attack. We have information that she might have died due to old age-related ailments."
With inputs from PTI