With nine days left for the filing of nominations for the Tamil Nadu Assembly election to commence, the seat-sharing parleys in the AIADMK-led NDA has entered a crucial phase and the lead party of the bloc is likely to retain about 170 seats, party sources said on Saturday. AIADMK general secretary Edappadi K Palaniswami's New Delhi visit on March 19 has finalised the numbers and the party is likely to retain about 160 to 170 seats out of the 234 Assembly constituencies in the state. "This is to ensure that the AIADMK obtained a majority on its own to form the government," a senior party leader said. The party requires a simple majority of 118 MLAs to form the government on its own. Palaniswami, who heads the NDA in the state, has already set a target to win 210 seats and is being projected as the chief ministerial face of the bloc. The BJP is likely to be allocated 30 seats, up by 10 than the number it contested in the 2021 Assembly election, while the PMK (Anbumani) is likely to