orate General of Civil Aviation on Tuesday filed a police complaint against 34 pilots from private airlines for abusing a senior official in a WhatsApp group chat.Based on the complaint, ten pilots from Jet Airways were questioned by Delhi police on Tuesday. No charges were framed against them and pilots were let off in the evening.Tension between pilots and the DGCA has been on a rise following a draft proposal to increase pilots' notice period from six months to a year. Upset over the proposed rules several pilots complained to the regulator while others vented their frustration on social media and WhatsApp chats. One such group chat with obscene comments against a senior DGCA official triggered the action." DGCA has filed a complaint (against pilots) for making remarks against our officials on social media. It is for the police to take any action," Director General of Civil Aviation B S Bhullar said in a text message response. Along with Jet Airways, pilots from GoAir, IndiGo and .