The election commission late on Sunday decided to cancel the by-election to the R K Nagar constituency, scheduled on April 12.

The poll panel's decision came a day after the Income Tax Department said that around Rs 100 crore has been distributed to R.K. Nagar voters by the AIADMK faction led by the now jailed V.K. Sasikala

According to the documents seized by the I-T officials during their raids in Chennai on Friday and published by some media, the price of one vote in the by-poll bound R.K. Nagar constituency is Rs 4,000.

As per the documents leaked to the media, the Sasikala-led AIADMK faction had given over Rs 89.5 crore to seven ministers for distribution among R.K.Nagar voters and they were given a target to distribute cash to 85 per cent of the voters, numbering 2,24,145. 

On Friday, I-T officials raided the residences and business premises of Tamil Nadu Health Minister C. Vijayabaskar, his relatives as well as persons close to him and his business associates.

"We have seized cash totalling Rs 5.5 crore. We have also seized documents showing Rs 89 crore changed hands in R.K. Nagar," an I-T official had media.

In the 2016 assembly elections, the Election Commission had postponed the polls in Thanjavur and Aravakuruchi assembly seats citing large-scale bribing of voters.