Quetta   - Torrential rains have played havoc, destroying a number of houses in different areas of the province. Dozens of mudhouses have collapsed after the rains continued lashing Quetta, Kalat, Pishin, Khanozai, Mastung, Qila Abdullah, Ziarat, Muslim Bagh, Harnai, Qila Saifullah, Noshki and others for three days.