Direct-to-home (DTH) service provider Tata Sky is offering free subscriptions for the next three months - ahead of the cricket World Cup - and has roped in actor Hrithik Roshan for its new marketing campaign where select viewers will get to watch the World Cup final match with him."The new marketing campaign is a step to reach the one million subscriber base at the end of 12 months from our launch. We expect phenomenal subscription during the World Cup," Vikram Kaushik, CEO and managing director, Tata Sky, said.The company will invest Rs 2,000 crore over the next few months. "Our subscriber base has reached half-a-million since launch in August 2006. We are confident of achieving our target of one million users in the next few months," Kaushik said.