Chennai: TTV Dhinakaran-led Amma Makkal Munnetra Kazhagam (AMMK) Saturday allotted Chennai (Central) Parliamentary constituency to its ally Social Democratic Party of India (SDPI) for the April 18 Lok Sabha elections. Earlier, the two parties had entered into a poll pact under which the AMMK allotted one seat to the SDPI. A brief statement from Dhinakaran said SDPI has been allotted the Chennai (Central) constituency. Polls to 39 Lok Sabha seats in Tamil Nadu and one in Puducherry are scheduled on April 18.