“I am joining politics for sure,” said Tamil superstar Rajinikanth.He was addressing his fans in Chennai.He said he will launch a political party which will contest all 234 assembly constituencies in Tamil Nadu. Film super star said the party will be launched ahead of assembly elections at an appropriate time.Rajini had for first time fixed a date to spell out his plans on entering the political arena. The announcement comes after several months of uncertainty over his entry into politics.The policies of the party will be taken to the people, he said and added that truthfulness, hard work and growth will be the slogan of his party. “Do good, speak and only good will happen,” will be the guiding slogan, he said.