The civil aviation ministry is keeping a close watch on the developments at crisis-hit Go First and the proceedings that are expected at the NCLT this week, a senior official has said.Faced with a severe financial crunch as more than half of its fleet is grounded due to the non-availability of Pratt & Whitney engines, Go First on Tuesday filed for voluntary insolvency resolution proceedings before the NCLT and has also decided to cancel all flights for May 3 and 4.