BSNL Triple Ace 333 vs BSNL Chauka 444 vs BSNL Sixer 666

Bharat Sanchar Nigam Limited (BSNL) has been very active in the past few months launching offers almost every fortnight. As of now there are many offers and some users want to compare the best offers and then opt for it. We have brought a comparison between Triple Ace 333, Chauka 444 and BSNL Sixer 666.