airports authority of india (aai) is planning construction of combined operational offices at safdarjung airport, dist. south delhi, delhi. e-tenders have been invited for the work of construction of combined operational offices for dgca (directorate general of civil aviation), bcas (bureau of civil aviation security of india), aaib (aircraft accident investigation bureau), aera (airports economic regulatory authority of india) & aai at safdarjung airport, sh: civil, electrical, fire-fighting and hvac works at an estimated cost of rs. 2,450.8 million. the period of completion is 30 months (including 3 months for 1st rainy season). last date for submission of bids is 20th april, 2017. [info as of: mar. 17]