why can't they buy one in Delhi itself? lots of options are available that aren't that much pricier than the US. The last time I wanted to take a net book to India for a relative, we figured it was cheaper to buy in India directly as the US warranty is hard to apply in India anyways. In our case, it was:

Base Price (US) < Base Price (India)

Base Price+warranty(US) > Base Price (India)

Base Price+warranty(US) < Base Price + warranty (India)

-- i.e. the difference wasn't that large as evidenced by eq. 2