I know this place more by the name "Swastik" at Santacruz, near the station.
It is once small normal Sandwich stall, with awesome Veg. Cheese Grilled Sandwich.
The Veg. Cheese Grilled Sandwich you get here is THE BEST ...
Tried numerous other places in Mumbai, outside Mumbai, some how nothing beats this.
Though Bad thing is What has not changed is their service, cleanliness & customer focus.
Still a good place to visit.