'Mumbai kisi ke baap ka nahin hai,' growled the city's joint commissioner of police K.L. Prasad recently. He was briefing the media on the alphabetic agitation -- M is for Mumbai is for Maharashtra Manoos is for Marathi -- launched by Maharashtra Navnirman Sena chief Raj Thackeray against actress-MP Jaya Bachchan's alleged anti-Marathi remarks, made in Hindi.