Mayor of the metropolis city Karachi, Waseem Akhtar has vowed to take his due powers as a mayor of the city. Waseem Akhtar who was seen with cobra in his hand revealed this while talking to media persons outside Frere Hall here on Saturday. The Mayor Karachi also expressed his wish to take picture with the cobra on the occasion. Waseem Akhtar had visited Frere Hall to witness an art exhibition being held at the venue.