Versatile actor Kamal Haasan has joined the micro blogging site Twitter officially today, on the eve of the 67th republic day.Guess what his first tweet will be. It is about the freedom struggle which paved for the independence of the Indian republic nation. He quoted "India's freedom struggle remains unique even today. Respecting it is d only way to keep it & set new world standards"Also, he has released his version of the national anthem. Watch it here.