Asserting that the proposed delimitation exercise based on population would not be "fair" to southern states, the DMK-led Joint Action Committee meeting on Saturday demanded that the Centre should extend the freeze on Parliamentary constituencies, based on the 1971 Census population, by another 25 years and decided to submit a joint representation to Prime Minister Narendra Modi during the ongoing Parliamentary session. A political consensus also emerged to fight against "population" as the yardstick to determine delimitation and it was resolved during the meeting, which was held to ensure "fair delimitation", not to lose representation for southern states. Politically, the meeting, which was attended by three chief ministers, a deputy CM and leaders of 14 parties including the BRS, BJD andD from six states in a show of solidarity on the issue, was a shot in the arm for Chief Minister M K Stalin and his party DMK, ahead of the Assembly election in Tamil Nadu next year. "The upcomin