I came across an interview by Koena Mitra...she also shops at Si Branche like Natassha...
Here is what she said about it:
Mall Crawl
In Bombay I mostly shop at Si Branche in Bandra. It is a small boutique but they stock very unique things. Their merchandise is not picked up from the footpaths in Bangkok or Singapore. They stock very classy clothes from London. They are expensive but then you won€™t bump into any one wearing the same stuff. So it€™s worth it.
Lol sorry if this is completely stupid..😳 but I wasjust wonder what Si Branche was coz Nat looks very cute in her clothes..😆