In 1969 “PERARIGNAR ANNA” passed away leaving the whole of Tamilnadu in most extreme sorrow. After his death there began internal turmoil and confusions among the second line leaders of the DMK.As a result of this “PURATCHI THALAIVAR Mr.M.G.Ramachandran” (MGR) was expelled from DMK. With the overwhelming support of the people PURATCHI THALAIVAR MGR launched his political outfit “Anna Dravida Munnetra Kazhagam (ADMK)” on the 17th October ‘1972 which party is now called as “All INDIA Anna Dravida Munnetra Kazhagam (AIADMK)”

SDS joined the ANNADMK as the first Parliament Loksabha Member. Along with him SDS streamed in to the new Dravidian party many of his political followers from various other parties. Since then SDS worked his heart out to fight against the DMK, which was in power at that time bearing bad name for corruption. SDS put forth his fullest effort to form and frame the fresh party from the grass root level. The committed hard work done by SDS in formation of party structure at the start holds such a huge cadre strength and staunch followers till today, which is known to every individual of the party AIADMK.

In 1973 By- election was called for “Dindugal” Loksabha Constituency. Since it was just a few months for the beginning of ADMK there were some hesitancy to contest the elections among the party frontline leaders, But ”PURATCHI THALAIVAR MGR”dared to contest the polls. He took confidence in the Propaganda Secretary of AIADMK SDS and made him the organizing head of the election campaign. ADMK won the elections and got political acceptance from the people of Tamilnadu.

This victory brought SDS close to the heart of “PURATCHI THALAIVAR MGR” and they had great understanding thereon.“PURATCHI THALAVR MGR” had SDS as his loyal associate and an intimate family friend. Later “PURATCHI THALAIVAR MGR”gave SDS a cabinet berth as Revenue Minister of Tamilnadu.

“PURATCHI THALAIVAR MGR” once referred SDS as the “Honest and Clean minster who add revenue only to the Government and not a penny for himself in the Tamilnadu assembly”. People still refer to him as a clean politician.