I was just going through the newsgroups today. As usual the iitb.general was the last to be read :-). There I found one important information.
For Nokia handsets, 112 is the emergency number. It works even if the keypad is locked or even if SIM is not inserted :-O. this was a very surprising thing to note. However, in the posting it was also mentioned that 100 does not work but when I tried....man, I hangup as soon as I heard it ringing.
People should verify the things before posting on to newgroups. Someone might actually try it!!