Sr. Den/North/Sbc Sec And Sr. Den/East/Sbc Sec : Flash Butt Welding Of 60Kg Rails Of 20 Rail Panel Of R260, R350 Or Higher Grade In Traffic Block Period On Running Line In Sbc Division, Using Road-Cum-Rail Mobile Flash Butt Welding Plant In Connection With The Work (I) Through Rail Renewal Of Existing 52Kg D Mark Rail With 60 Kg Rail For A Length Of 12 Km From Km 1/000 To 13/000 (Sl) In Sse/Pway/Ynk Sec, (Ii) Complete Track Renewal (P) Of Existing 52Kg Rails On 52Kg Psc Of 1660 Nos/Km With 60Kg/90 Uts Rails And 60Kg Wider Base Sleeper At 1660/Km For A Length Of 33 Km From Km 13/0-46/0 (Sl) In Aden/Ypr Section And (Iii) Through Rail Renewal (P) Of Existing 52Kg Rails With 60Kg/110 Uts Class I Rails For A Length Of 15.30 Km From 132/200-147/500 (Sl Dmarked) In Sse/Pway/Kqz Secsr. Den/North/Sbc Sec And Sr. Den/East/Sbc Sec : Flash Butt Welding Of 60Kg Rails Of 20 Rail Panel Of R260, R350 Or Higher Grade In Traffic Block Period On Running Line In Sbc Division, Using Road-Cum-Rail Mobile Flash Butt Welding Plant In Connection With The Work (I) Through Rail Renewal Of Existing 52Kg D Mark Rail With 60 Kg Rail For A Length Of 12 Km From Km 1/000 To 13/000 (Sl) In Sse/Pway/Ynk Sec, (Ii) Complete Track Renewal (P) Of Existing 52Kg Rails On 52Kg Psc Of 1660 Nos/Km With 60Kg/90 Uts Rails And 60Kg Wider Base Sleeper At 1660/Km For A Length Of 33 Km From Km 13/0-46/0 (Sl) In Aden/Ypr Section And (Iii) Through Rail Renewal (P) Of Existing 52Kg Rails With 60Kg/110 Uts Class I Rails For A Length Of 15.30 Km From 132/200-147/500 (Sl Dmarked) In Sse/Pway/Kqz Sec,