<br/>Tight security arrangements have been made across Bihar in view of the dawn-to-dusk state-wide bandh and blockade called by the RJD on Thursday to protest the government's alleged failure to rein in spiralling food prices.<br/><br/>Extra vigil is being maintained at vital installations during the bandh. Additional Director General of Police U S Dutta said that patrolling was intensified on national highways to ensure normal movement of traffic.<br/><br/>LJP, CPI, CPI-M and CPI-ML (Liberation) have extended full support to the bandh. Urging people to support the bandh call, RJD President Lalu Prasad said, both the central and state governments have failed to rein in the rocketing prices of essential commodities.<br/><br/>He said, essential services like medical, water and electricity supplies have been exempted from Bandh, besides the railways