Nearly a dozen supporters of the Aam Aadmi Party (AAP) were injured on Sunday when they were cane-charged and tear-gassed by Chandigarh Police.Police also used water canons to disperse the AAP workers when they tried to proceed towards the official residence of Punjab Chief Minister Parkash Singh Badal here.Earlier, the AAP protestors were stopped near Sector 57, close to Chandigarh's boundary with Mohali town in Punjab.The protestors were demanding a time-bound judicial probe into the pesticides scam in Punjab due to which cotton growers in the state suffered losses running into hundreds of crores of rupees, AAP youth wing president Harjot Singh Bains said.