e-tender for sla based maintenance of ofc ( optical fibre cable ) routes under keonjhar oa; 1 ofc based route maintenance work ( sla ) 2 ofc based route maintenance work ( sla ) including round the clock route-patrolling, jointing of interrupted cable, if required inserting additional cable between two ends ( preferably by doing underground & in extreme case by overhead ) . end to end optical power budget has to be kept within limit, for the same, if required, damaged / lossy section of of cable has to be replaced by new cable. all material ( except bsnl supply ) & labour should be supplied by the contractor including operating tools / instruments ( such as splicing machine ) & measuring meters ( such as otdr, power meters ) etc. transportation of these materials & lying of of cable is the responsibility of the contractor. ( rate to be quotedfor per km per year )