Delhi Deputy Chief Minister Manish Sisodia on Wednesday alleged that activists of the BJP's youth wing BJYM attacked and damaged CCTV cameras as well as security barriers at Chief Minister Arvind Kejriwal's residence during a protest here. Activists of the BJYM led by its president Tejasvi Surya staged a protest at Kejriwal's residence here demanding his apology for allegedly "mocking" Kashmiri Pandits.