He said while BJP's vote share at the national level was 31 per cent, it had won 282 seats, but its rival Congress with 19.3 per cent vote share had netted 44 constituencies.
AIADMK and CPI(M) had a vote share of 3.3 per cent each at the national level, but the ruling party in Tamil Nadu had won 37 seats while the Left party had come out winning in nine, he wrote in the party mouthpiece 'Murasoli.'
But for countries that were erstwhile British colonies, many others were following the Proportional Representation system, wherein they get allocation in Parliaments according to their vote share and after which the political parties nominate members, Karunanidhi added.
He said DMK founder C N Annadurai had argued for Proportional Representation and though it did not find support initially, many national parties were now talking about it.
Seeking to enthuse his supporters in the face of a complete rout in the April 24 elections, Karunanidhi said DMK had gone through ups and downs earlier and exhorted them to work with the party's founding principles of "Duty, Discipline and Dignity" and strengthen it at the grassroots level even as Assembly elections are due in another two years.