
1) Former capital city in India 2) Palace in Assam
Found on
https://www.crosswordclues.com/clue/garhgaon

Garhgaon (Pron:/gɑ:ˈgɑ̃ʊ/) was the capital of the Ahom kingdom for many years. It was built by the Ahom king Suklenmung (Gargoyaan Rojaa) in 1540. It lies 13 km east of present-day Sivasagar town. The palace structures were made of wood and stones. In 1747 Pramatta Singha, son of Rudra Singha, constructed the brick wall of about 5 km in lengt...
Found on
http://en.wikipedia.org/wiki/Garhgaon
No exact match found.