However, supporters of both the parties have started celebrating the lead of their respectable parties. While security arrangements are being made to handle the crowd gathered outside Jayalalitha's house, DMK supporters celebrating outside the party headquarters are still confident of winning Tamil Nadu.
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With exit polls painting a mixed picture for AIADMK chief Jayalalitha, all eyes are now set on the results, which will be announced in a few hours.
Voting for Aravakurichi and Thanjavur constituencies have been deferred to 23 May.
The two major Dravidian parties in the state - which have been alternatively ruling for the past 50 years are the All-India Anna Dravida Munnetra Kazhagam (AIADMK) led by Jayalalithaa and the Dravida Munnetra Kazhagam (DMK) led by M Karunanidhi.
Other parties in the fray include the Bharatiya Janata Party (BJP), the Pattali Makkal Katchi (PMK), and the Desiya Murpokku Dravida Kazhagam (DMDK) - led by actor-turned-politician Vijaykanth.