. I guess you read it in a humour or in sarcasm. Indian people are really very helpful and kind in nature

That's what i thought, I think the Author of that article was just over board with his or her idea of Indian culture. Here

Now that Singh has been in the United States for so long, he finds that saying “thank you” is second nature. But this has also gotten him in trouble while visiting family in India. One time he thanked his uncle for hosting him in his home and was met with an expression of disgust and disappointment. There was no need to say it because to do so was a violation of the intimacy of the relationship. In India, the assumption is that family and friends are kind to each other because it is expected. Assuming otherwise cheapens the gesture