New Delhi, April 10 (IANS) Budget passenger carrier IndiGo on Monday announced a "three-day summer vacations offer" for its passengers with all-inclusive fares starting at Rs 999 across its network. "IndiGo passengers who wish to travel at low fares can avail this attractively priced all-inclusive offer starting at Rs 999 on 6E network - both domestic and international sectors," the low cost carrier said in a statement. According to the airline, the three-day offer will start from April 10 to April 12, 2017 and will be applicable for travel between May 1 to June 30, 2017 on select destinations.