The Trinamool Congress earlier in the day suspended Roy for six years for anti-party comments.
Prime Minister Narendra Modi on Sunday offered prayers at the divine Kedarnath temple in Uttarakhand. Later in the day, PM Modi reached Badrinath, another temple in Uttarakhand's 'char dham' religious circuit.
The EC should ensure that Sunday's polling is held without the "undue interference of the central government" and any "intervention by the ruling party at the Centre", Banerjee, West Bengal chief minister said in the letter written on her official letterhead.
"The minorities are facing a double edged sword. They do not consider either BJP or Trinamool Congress to be worthy of running the state. They want a secular alternative. But there isn't any. So they are forced to vote for Mamata Banerjee to stop BJP this time," he told IANS.
The state, which has witnessed the most bitter electioneering this time between the TMC and the Bharatiya Janata Party, will have polling on the remaining nine of the 42 Lok Sabha seats on Sunday, the seventh and last phase of elections
The reaction from the TMC came close on the heels of BJP president Amit Shah accusing the West Bengal's ruling party of indulging in violence in the state and alleged that the Election Commission has been a "mute spectator".
Parts of the city plunged into a welter of violence as his convoy was attacked with stones by alleged TMC supporters from inside the hostel of Vidyasagar College, triggering a clash between supporters of the two parties, officials said.
I do not disrespect the central forces. But they are being instructed to influence the voters. On the pretext of deploying central forces in West Bengal, the BJP is forcefully pushing BJP and RSS activists here.
Accusing Bengal's ruling Trinamool Congress of trying to turn the state into a hub of "misrule and hooliganism", Naqvi said it was possible that the administration was not fully cooperating with the EC to maintain law and order during the ongoing Lok Sabha polls.
Over 10.17 crore voters will decide the fate of 979 candidates in the sixth phase of Lok Sabha elections. The Election Commission has set up 1.13 lakh polling stations for the smooth conduct of elections.
A gritty fight between state BJP chief Dilip Ghosh and Manas Bhunia, a seasoned politician who jumped ship form the Congress to the Trinamool Congress in 2016, and a father-son duo contesting from two neighbouring seats laden with the memories of 'Quit India' movement also headline the polling scene on the morrow.
Demanding re-poll in polling stations where booth capturing was reported, the Left parties submitted a video of the voting process in booth number-52 at Amgoria Ananda Prasad Smriti Primary School in Ketugram to substantiate their allegation.
In a letter to Chief Election Commissioner Sunil Arora, the Trinamool said they objected to Nayak's "partial statements" as well as his appointment, as he is a retired officer, "which is in violation of Section 20 (B) of the Representation of Peoples Act".
Addressing an election meeting in this town in South Dinajpur district, Modi said the people had reposed a lot of faith in 'Mamata didi', who had hoodwinked the "Ma, Mati and Manush" (mother, soil and people -- Banerjee' pet slogan) of the state.
West Bengal Congress president Somen Mitra said his party won't seek support from Mamata Banerjee-led TMC to form the next government or support her bid to become the prime minister in case the general election results throw up a hung Parliament.
She sought to know why Prime Minister Narendra Modi isn't removing his own Cabinet secretary or the Union home secretary, if he was so "fond of making last-minute changes".
The Election Commission's decision is "unfortunate", highly arbitrary, motivated and "biased" and was taken at the behest of the BJP, she said in the letter, content of which was shared with PTI.
Kolkata's Chinese connect has taken a new form and shape, with people in this part of the city coming out in support of the Trinamool Congress (TMC), painting the township blue and white (the colours of the ruling party) with political slogans in Mandarin.
Nanda said the Samajwadi Party decided to go for a tie-up with the Bahujan Samaj Party while leaving only two seats - Amethi and Raebareli - for the Congress in the light of its experience in the 2017 assembly polls in the state.
Two persons, including a BJP worker, were arrested in West Bengal on Saturday for allegedly posting obscene messages on social media about Trinamool Congress Lok Sabha candidate Nusrat Jahan, police said.