LUCKNOW, April 11 -- Be alert while driving, and especially when your vehicle is stationary and a stranger comes knocking at the car's window, trying to tell you about a punctured tyre. The Lucknow Police has shared an advisory in this regard after busting a 'Thak Thak' (knock-knock) gang operating in the state capital. The group specializes in targeting parked vehicles and employs deceptive tactics to distract victims before stealing cash and valuables....