| 1 | Geotechnical Investigation at Ghoshpukur Salsalabari Road Project – Ghoshpukur, Darjiling, W.B.(Package - II) (NH - 31D) | Simplex InfrastructuresLtd. | 01.05.2018 |
| 2 | Soil Investigation Work for Proposed Viaduct at Approach of Welf A1 side of Gajoldoba TouristHub Bridge, Jalpaiguri. | Mackintosh BurnLimited | 25.11.2019 |
| 3 | Soil Investigation Work for Proposed Rail Bridge Project at Hamipur. | GPT Infra projects LimitedGPT Centre, JC – 25,Sector – III, Salt Lake,Kolkata – 700 098. | 20.11.2020 |
| 4 | Soil Investigation Work for proposed 4 Laning of NH17 at Bilasipara, jagijhopa, North Salmara,Guwahati, Assam. | A.E.C Infrastructure Service524, Poddar Court, (Gate-02), Rabindra Sarani,Kolkata 700001. | 24.08.2021 |
| 5 | Geo-technical Investigation Work for Construction of 4-lane ROB and its approaches inreplacement of existing RUB (Rly. Km. 31/24-26) between Bhedia & Bolpur at Bhedia at Km41.760 of NH – 2B in the State of West Bengal. | A.E.C. Infrastructure Services524, Poddar Court(Gate – 02) RabindraSarani, Kolkata – 700001. | 15.07.2021 |
| 6 | Soil Investigatio Work of Proposed Rob and it's Approaches in Replacement of Existing LevelCrossing Gate No.- 21SPL/E in Suri At Km.338 Of Nh-60 between Kachujora – Suri Station. | S. S. Civil ConstructionPvt. Ltd. | 07.06.2021 |
| 7 | Soil Investigation Work for Proposed Water Treatment Project at Jhargram. | M/S Priyashree Construction | 12.08.2021 |
| 8 | Soil Investigation Work for Induction Furnace based Steel Melt Shop and Rolling Mill at2116-C-001, Plasto Steel Park, P.S. – Barjora, Dist. _ Bankura. | Advoy Udyog Pvt. Ltd. 7,Khetra Das Lane, Kolkata –700 012. | 30.06.2021 |
