finally went there and sampled their chaats.
a dahi papdi chaat, a corn -aaloo chaat, bhelpuri - bombay style not Bihar style- :(
and a tall glass of jal jeera....simply yumm
the right degree of tanginess, I think the curd is critical. it has to be just right- not overtly sour but just curdled.
we went to the one next to Lady Andal School in Harrington Road.
and i love their plates.