Devraj Sinha The monsoon had not yet broken, but the clouds over Mumbai were swollen with a menace that seemed to mirror the city’s mood. At Marine Drive, waves pounded against the seawall as if the Arabian Sea was impatient with human stubbornness. Detective Arvind Rao, sitting in the back of a police jeep, felt the salt spray coat his face as they sped past the stretch of neon-lit hotels that fronted the coast. His phone buzzed again; Commissioner Kulkarni’s voice had been sharp and hurried. “Bollywood producer, big name, dead in a penthouse. Locked room. Media will have a…