N EW DELHI: The custody of a nondescript locked room No 4 on the ground floor in ‘A’ wing of Nirman Bhawan has become a mystery of sorts as no one seems to know which ministry or department it ...

The Pincode 110011 of Nirman Bhawan P.O. represents Nirman Bhawan post office in Central Delhi revenue district which comes under the Delhi postal circle of Delhi region.