Section 105(4) in Bihar Inland Vessels Rules, 2013
(4)The master shall;(a)On sighting a vessel or raft which has suffered an accident endangering persons or the vessel or threatening to obstruct the channel, give immediate assistance to such vessels without endangering safety of his own vessel;(b)In case of any marine casualty, give warning to the approaching vessels to enable them to take necessary action in good time steer clear of the channel when in danger of sinking or goes out of control.