"Justice Shampa Sarkar asked the Election Commission of India to preserve all records, and devices, such as electronic voting machines and video recordings, apart from issuing the notice to Suvendu," Mamata's lawyer Sanjay Basu told the media.

Justice Sarkar took over the case from another judge against whom Mamata had levelled allegations of 'conflict of interest' in the wake of his alleged links with India's ruling BJP.

However, before quitting the case, Justice Kaushik Chanda fined Mamata with 5 lakh Indian rupees allegedly for her ‘preplanned move to malign a judge’.

On 2 May, Mamata pulled off a landslide victory in the assembly election for the third time in a row, staving off a massive challenge from prime minister Narendra Modi's BJP.

Though her Trinamool Congress party swept back to power with a resounding majority, Mamata lost her own seat in Nandigram to BJP's star campaigner Suvendu by a thin margin of 2,000 votes.

Last month, Mamata moved the high court to declare Suvendu's election win null.

"Suvendu Adhikari has indulged in several corrupt practices that have enhanced his winning chances and materially altered Mamata Banerjee's chances of success in the election," her petition read.

In her petition, Mamata also alleged discrepancies in the counting of votes, Mamata's lawyer had said.