In a smooth 'succession', Stalin was today named Working President by the party General Council with all powers of the post of President, a position his 93-year-old father M Karunanidhi continues to hold.
After steadily climbing in the party hierarchy from starting as a municipal-ward level representative to becoming the Treasurer and now the Working President, the 63-year old leaders enters a decisive phase in his political career.
Known as "Thalapathi" (commander) among his supporters, Stalin had held various posts in the party such as deputy general secretary and youth wing chief besides being a minister and later Deputy Chief Minister in his father's cabinet and Chennai Mayor.
With affable and easily accessible traits, Stalin endeared himself to the party's rank and file more by taking up new initiatives.
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Stalin could now be expected to target the state
government even more aggressively as he tightens his grip further over the DMK which had seen factional feud in the past.
With no presence of his elder brother and former Union Minister M K Alagiri, in the party, there is none to stop Stalin DMK with top leaders who count firmly behind him.
However, Stalin has a good rapport with his half-sister and DMK Rajya Sabha member Kanimozhi.
Be it any issue including the Cauvery, agrarian distress or the civic polls, which were cancelled by the Madras High Court in October last on a DMK plea, Stalin got his party catapulted into the forefront of political narrative.
Though victory eluded DMK in the last year's Assembly polls, in which he led the campaign, it was his proactive electoral field work that made the contest pretty close between his party and the AIADMK.
Stalin patiently waited for his elevation though his name was doing the rounds as early as 2007 when it was expected that he will be named "successor" of Karunanidhi at a party youth wing conference in Tirunelveli.
In 2015, he had dismissed as malicious rumours a claim
that he had offered to quit his post of Treasurer as he was not allowed to contest for a higher post like that of general secretary in the organisational polls.
However he continued to project his father despite his supporters wanting him to take over the mantle as he did not want to allow room for any dissent or suspicion from the old guard in the party.
Born March 1, 1953 he campaigned for DMK in the 1967 elections when he was a 14-year old school student. He was incarcerated under MISA during the emergency in 1976.
Stalin's growth has been steady and he became party Deputy General Secretary in 2003 and was re-elected Treasurer for the second five-year term in January 2015.
He became an MLA for the first time in 1989 from Thousand Lights constituency in Chennai, which he had won thrice. In 1996, he was elected Mayor of Chennai Corporation and re-elected in 2001.
However, he had to make an exit from the post with the AIADMK capturing power and enacting a law that barred elected representatives also holding positions in local bodies.