preventive maintenance and emergency breakdown works in 336 kms of eht lines for eight months from the date of utilisation, under works contract insembatty lines sections (dindigul edc) of madurai operation circle; 1 routine maintenance 2 fitter-i class 3 mazdoor category ii 4 preventive maintenance under lc / breakdown maintenance( plains) 5 fitter-i class 6 mazdoor category ii 7 contractors service charges(quote % only and not more than 13%) 8 provision of vehicle ( including fuel ) and auxiliary expenses for maintenance 9 hiring charges of lorry orequivalent vehicle, for transporting men and line materials to site and back. 10 hiring charges of tractor 11 hiring charges of jcb/crane 12 hiring charges of boat 13 provision of t&p, uniform, saftey gadgets 14 uniform, safety gadgets , various size of spanners and other t&ps as required in section etc. 15 provision of insurance 16 group insurance (rs.8,00,000/-), individual medical insurance (rs.4,00,000/),accidental death coverage policy in banks.