During Kanishka's reign, the centre of political activity shifted from Magadha to (a) Delhi (b) Ayodhya (c) Kannauj (d) Purushapura (Peshawar)
option d. During Kanishka's reign, the centre of political interest shifted from Magadha to Purushapura, now Peshawar. The middle of the area turned into the higher Indus and Ganges river valleys that now lie in Iran and India; its capital became the town of Purushapura, now the metropolis of Peshawar in Pakistan.