Dehradun, March 16 -- A Dehradun Police constable was booked for allegedly raping and blackmailing a woman sub-inspector, a police official said, adding that the FIR was registered under relevant sections of the Bharatiya Nyaya Sanhita (BNS) at the Patel Nagar police station. Senior superintendent of police Ajai Singh said, "On the sub inspector's complaint, we have registered an FIR at Patel Nagar police station against the constable. Investigation into the matter is underway." The senior official, however, said he hasn't seen the FIR and was unaware of the specific allegations. The police also didn't reveal the identity of the accused, citing the investigation....