request for proposal ( rfp ) appointment of safety consultants ( ( 1 ) tolling, operation, maintenance and transfer of kanyakumari section from km.0 / 00 operate and transfer model ( 2 ) tolling, operation, maintenance kanyakumari section from km.52 / 300 operate and transfer model ( 3 ) tolling, operation, maintenance and transfer of kanyakumari section from km.116 / 500 to km.180 / 000 of nh operate and transfer model ( 4 ) tolling, operation, maintenance and transfer of kanyakumari section from km.180 / 000 operate and transfer model national highw vijay email: nhai - rfp for appointment of safety consultant 1 office-madurai for 4 projects ) four laning of 000 to km.52 / 300 of nh-7 ( new nh 44 ) model ) in the state of tamil nadu. and transfer of four laning of to km.116 / 500 of nh-7 ( new nh 44 ) ( toll model ) in the state of tamil nadu. four laning of nh-7 ( new nh 44 ) ( toll model ) in the state of tamil nadu. four laning of to km.243 / 170 of nh-7 ( new nh 44 ) ( toll model ) in the state of tamil nadu.