Historical clue formulations

• Asian capital designed by British urban planners — 2019-07-10
• City served by Indira Gandhi International Airport — 2012-08-21
• *Recently opened sandwich shop? — 2009-04-30
• City served by Indira Gandhi International Airport — 2007-09-02
• Residence of some Indians — 2007-06-16
• Indian leader's residence — 1999-08-27
• Asian capital — 1995-12-03