Getting Here ...

Once you reach the CS&E department, the lab is on the first
floor west  side.  There are two entrances to the lab; the one
towards the north is preferred during the monsoon season.

To get to the department, you must first know how to get to IIT.  
To  get to IIT, you have the following options --

From the International airport: Follow directions to go to Leela Kempenski
Hotel, make a right on Andheri-Kurla Road, a left at Saki Naka
(i.e. at the second signal), right at L&T (Larsen & Toubro)
past the Powai lake to the Main Gate.

From city, west side: Take the western express highway to the
Jogeshwari-Vikhroli link road, past L&T, past the Powai lake to the Main
Gate.

From downtown: Take the eastern express highway past Godrej.  exit
westwards towards Kanjur Marg and climb up the hill to the Market Gate.

By Train:  Nearest suburban line is to Kanjur Marg, on the Central Railway.
Minimum Autorickshaw fare to the Market Gate. Don't look for taxi cabs.

By Bus (Get down at the Market Gate).:  (a) From Andheri: 396, 336, 392
                                        (b) From Ghatkopar: 392, 337

From the gate: Drive to the "main building," park at the main building.
Ask for the "new" CS&E building, past the Maths dept and the Central Library.

Once you reach the department, the lab is on the first floor west side. 
There are two entrances to the lab; the one towards the north is preferred 
during the monsoon season.