Mumbai, Dec 8 : Bollywood actor Ranbir Kapoor flagged off a motorcycle rally here on Monday.

A total of twenty finalists got ready to travel over 4,500 kilometers across 40 cities in seven states across India for the next 21 days.

Ranbir Kapoor gave a tip or two on how to drive the bike safely.

"All I can say that if you''re riding a bike, it''s good but you should wear a helmet, you should not drink and drive and you should be responsible," said Kapoor.

Her also spoke about his upcoming film ''Rocket Singh- Salesman of the Year''.

"This is my third release this year and I have too many hopes on this film as we have worked very hard on this film. It''s a very special film for me,'' said Kapoor.

Rocket Singh is slated for December 11 release. (ANI)