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2026_RDTN_718080_1 Drilling of 150mm dia bore well in hard rock formation using DTH rig for providing hand pump at amayampattu BG in Manamathy panchayat in Thiruporur Panchayat Union in Chengalpattu District for the Year 2026-27 having Package No 1/2026-27scheme of SF · TN Tenders