Actor R. Madhavan's directorial debut 'Rocketry: The Nambi Effect' lit up the Nasdaq Billboard at Times Square as the team showcased the film's trailer on the big billboard.

Madhavan and his team have embarked on a 12-day promotional tour across the US. One of the highlights so far has been the city of Stafford, Texas declaring June 3 as Nambi Narayanan Day.