supply of supply, installation and commissioning of computerized swtr as per enclosed specifications.supply, installation and commissioning of computerized swtr as per enclosed specifications.,supply, installation and commissioning of computerized swtr as per enclosed specifi cations. [ warranty period: 30 months after the date of delivery ] ] , comprehensive annual maintenance contract for computerized swtr (single wagon te st rig) with a warranty of two years and comprehensive annual maintenance contract for a period of 5 ye ars after completion of warranty period of two years. (rate for comprehensive annual maintenance contra ct for a period of 5 years after completion of warranty period of two years to be quoted separately apart fr om rate of computerized swtr (single wagon test rig) as per enclosed specifications.) ]