Possible Clues:

• Taj Mahal's town
• Indian city covering half of the land
• 5-Across' city
• Site of one of the world's most famous onion domes
• City's answer — good god!
• The Taj Mahal's town
• Shah Jahan's home town in Margate? On the contrary
• Mogul capital until 1658
• Indian landmark
• Indian city's silver presented to artist