the IOC faxed to the respondent relevant portion of the message received by them from Oil Co-ordination Committee,extending the period of usage of the existing coastal tanker fleet for the month of October,1998,at 80% charter hire rates,prevailing till 30th June,1998,on provisional basis,subject to adjustment of provisional charter hire with retrospective date from 1st September,1998 against the revised charter hire,to be finalised by the Oil Industry in response to the tender floated by IOC on 1st September,1998.Respondent s consent was asked for