Good Tangra style chinese?
Mainland China is not "tangra type"....the best Tangra Type outside Tangra is Pei-Ping at Park Street, next to Asiatic Society.
You will get couple of more food joints in and arround Terrety Bazar, one of them is Euechow,
you get Jimmy's kitchen at AJC Bose road and Theater Rd xing.
you will get some more here and there in Ballyguange, Lansdown area