design & construction of formation in embankments, cuttings including blanketing, ramp, rob, minor bridges, rub, ers/retaining wall, sacrificial retaining wall,drains, boundary wall and fencing works at-grade section of length 5.80 km (ch: 18.400 km to ch: 24.200 km) (balance works) and elevated viaduct of length 185m (24.200 to 24.385) for bstp corridor and also ir corridor and other related infrastructural works from yeshwanthpur to chikkabanawara including validation of design and stability check wherever applicable for works executed by previous contractor (excluding station buildings), of corridor - 2 of bengaluru suburban transport project (bstp).