tender for de-silting and disposal of silt/sludge from sump well of 10 mld kali mandir sps and 15 mld vivekanand sps in sewerage district - e of nagar nigam prayagraj including making bypass arrangement of sewage with necessary arrangement such as mud pump / dewatering pump, consumables pipe , hydra with pol and all required safety equipment such as gas detector, air, blower, safety belt, full body safety harness, safety gloves, gumboot, safety goggles/face shield, helmet, chemical resistant suit respirator/oxygen mask etc. and including all materials, labour all etc complete and disposal at suitable place or as per direction of engineer-in-charge.