[selimthegrim]

I have seen it in Pakistani Punjab, from an employee of the PTDC office in Lahore

[kranner]

Unless you've also seen the South Indian headshake, you might not know exactly what I meant by the culture shock. No Punjabi would do a long, slow sweep of their head to say "yes".

[aptwebapps]

If you have to be that specific, perhaps the employee picked it up elsewhere? ;)