“Rudra, stand down!” orders a woman’s voice. She sounds like Tabu. But she is not. This film seems to be another Fighter. But it is not. Going by the trailer released earlier today, Operation Valentine is a boxoffice winner even before the film releases on March 1. The trailer is intense and engaging, somewhat like the aerial battles that define the Top Gun genre. Except that this time, Varun Tej’s Rudra doesn’t seem to be faking it. What took Siddharth Anand’s Fighter down was all that posturing… Oh God, the look-we-are-saving-the-country posturing. In Operation Valentine, Varun Tej and the rest