Pakistan’s first RVS (Reverse Vending Machine) for recycling plastic bottles installed in which city?

Question

Accepted Answer

Islamabad. Islamabad is the correct answer because it was the location of Pakistan's first RVS installation. Karachi is incorrect as it was not the first city to install this machine. Rawalpindi is incorrect because historical records point to Islamabad being the initial site. Lahore is incorrect as it was not the first city to implement the RVS.