Invitation has been sent via WhatsApp to all Private practice association engineers, Nirmiti Kendra Engineers, Engineering College professors, Polytechnic professors, Bescom Engineers, ZP engineers, water supply engineers, Nagarshabha engineers, Upper bhadra yojana project engineers, KEB engineers, Geological department engineers, National Highway engineers, PWD engineers. Invitation is sent to all Senior engineers, junior engineers, practicing engineers, contract engineers, Chief engineer, Superintendent engineer, AE, AEE.