procurement of p-way material i . e . concrete sleepers of various size for day to day maintenance of railway siding from bir railway station to sstpp plant at sstpp , dongalia . , manufacturing and supply of presressed monoblock concrete sleepers ( pretensioned type , category ( i ) for 52 kg . rail section , broad gauge 1673 mm as per rdso drawing no . t-4172 , manufecturing and supply of presressed monoblock concrete sleepers ( pretensioned type , category ( i ) for 52 kg . rail section , broad gauge 1673 mm as per rdso drawing no . t-4183 , manufacturing and supply of presressed monoblock concrete sleepers ( pretensioned type , category ( i ) for 52 kg . rail section , broad gauge 1673 mm as per rdso drawing no . t-4184 , manufacturing and supply of presressed monoblock concrete sleepers ( pretensioned type , category ( i ) for 52 kg . rail section , broad gauge 1673 mm as per rdso drawing no . t-4185 , manufecturing and supply of presressed monoblock concrete sleepers ( pretensioned type , category ( i ) for 60 kg . rail section , broad gauge 1673 mm as per rdso drawing no . t-4186 , level xing sleepers manufacturing and supply of prestressed monoblock concrete sleepers ( posttensioned type , category ( i ) for 60 kg rail section , broaad gauge 1673 mm as per rdso drawing no . t-4148 , manufecturing and supply of presressed monoblock concrete isolated sleepers ( pretensioned type , category ( i ) for 52 kg . rail section , broad gauge 1673 mm for 1 in 8 . 5 turn out as per rdso drawing no . t-4865 , sleeper no . 3 ( 10 nos . 3 . 75 m each ) , sleeper no . 4 ( 10 nos . 3 . 75 m each ) , sleeper no . 5 ( 10 nos . 2 . 75 m each ) , sleeper no . 16 ( 10 nos . 2 . 90 m each ) , sleeper no . 11 ( 10 nos . 2 . 77 m each ) , sleeper no . 12 ( 10 nos . 2 . 79 m each ) , sleeper no . 23 ( 10 nos . 3 . 13 m each ) , sleeper no . 1e ( 5 nos . 2 . 55 m each ) , sleeper no . 3e ( 5 nos . 2 . 55 m each )