The CSIA airport Mumbai has two main lounges for travelers in business class viz. East wing and West wing.  Allocations are generally based on the time and airline you are flying. The West wing has a lower deck which opens at 7 pm. We got to experience this section of the lounge on our recent trip to Indonesia in Business Class with Malaysian Airlines. Of the 3 lounges across East/West/lower West this seemed to be the least crowded in our experience. The rush however increased sharply by 10 pm as most international flights depart at night from Mumbai.  The seating is upscale and the lounges are very well maintained and…