design, engineering, preparation of construction drawings, list of materials along with technical details, bill of quantities, preparation of the cost estimation for execution of electrical, mechanical, c&i and civil works of ash water recovery system, preparation of tender specification that consisting of approved construction drawings, detailed technical specification for inviting the tender for execution of ash water recovery system at kothagudem thermal power station stage-vii ( 1x800mw ) and vetting of vendor documents, drawings pertaining to mechanical, electrical, c&i and civil works for the above system after awarding of tender.