Opposition parties yesterday hit the streets in many states enforcing strikes in Kerala, Orissa and West Bengal in protest against the government's decision to hike fuel prices and warned of more agitation unless there is a rollback.<br/> <br/>In the national capital, Left parties and BJP staged demonstrations to protest against the hike. While BJP organised 'chakka jams' in various parts of the city, CPI-M, CPI, RSP and Forward Bloc organised a joint protest in Jantar Mantar in which senior leaders A B Bardhan and Brinda Karat addressed protesters.<br/> <br/>Protests were also staged in Andhra Pradesh, Jammu and Kashmir, Maharashtra and Uttar Pradesh among other states.<br/>