Puzzle

[Deep Blue]

Turn on first switch for 15 minutes and now turn it off and turn on switch number 2 and move inside the room. If the bulb is on then it is connected to second switch and if it is off then go and touch it. If it is hot then it is connected to first switch else the bulb is connected to third switch.

[Investorboy]

switch 1 : place it ON for 1 hour. then switch it OFF.
switch 2: Put it ON now.

Go inside:
if bulb is already lit: switch 2 is connected

If its dark: touch and check the bulb:
If it is hot: switch 1 is connected
if it is not hot : Switch 3 is connected

[PolicyWala]

Thanks for your replies... Now Answer Time

Switch on the first button and leave it on for 10 minutes, then switch it off and switch on the second button.Now enter the room, if bulb is on then second switch is the right one. If it is off then touch the bulb, if the bulb is hot then the first switch is the right one otherwise third switch is the right button