I always flew by NW/KLM via Amsterdam to Bombay. Last I traveled in April 2003. Only in the recent past, everyone is being asked to show their passports in either direction. But I never took any transit visa nor the Dutch guys ever asked me about transit visa.
I do not know why the question of transit visa should arise at all. If your final destination is to a different country, your face on the passport would be verified thats it.
The developments in the recent past are: If any one is travelling to USA from asia and arrives in any European countries for a flight change, he/she will be doubly checked. Sometimes they may ask you about US Visa, but they are not supposed to verify that since they do not understand about expired visa on passport, Adjustment of Status and Advance Parole etc......