India, June 16 -- It's been a year, but Tahir Khan, 35 still recalls the day he was handed his waiter's uniform. The job only offered Rs.12,000 a month - barely enough to scrape a living for him, his wife and two kids - but, he had no other option. "A year ago, I was let go from my previous job as a waiter at a restaurant. It paid Rs.16,000 a month. With four mouths to feed, I couldn't go without an income, so I took up whatever job I found," he said. As he was handed his uniform - a crisp white shirt with a tiny embroidered monogram, to be paired with black trousers - he was given a quick reckoner on how to greet guests: say "Good morning" to everyone he met at the start of the day; say "Enjoy your food" as he served food at the restaurant...