SW I: Replacement of steel girder with PSC slab for Bridge No. 490 ( 1x12. 20m ) at Km 29/ 800- 900 between Rajanukunte and Dodballapur stations of Baiyappanahalli- Dharmavaram section. SW- II: Replacement of steel girder with PSC slabs of size above 9. 15m and up to 12. 20m span bridges for Bridge no. 448 at Km 8/ 398 between Nayandahalli ( NYH )- Jnana Bharati Halt ( GNB ) stations of Bengaluru- Mysuru section. Maintenance period is 6 months or one monsoon period whichever is later.