Assuming that the children had valid Visa/PIO cards, but for a simple reason that they did not have it with them in person, to be refused entry is nothing but shameful for the corrupt, lowlife excuse of a human being who calls himself an immigration officer. The person should be fired. Hopefully he/she will burn in hell also.
And for those bigots, who in their letters, are supporting these action, are so consumed with hate with persons who chose to live outside India - and for all I care are equally hearless. Just a small example, I once lost my passport and had NO documents with me while entering US, the officer here was polite, did some checking, made a few calls, and I was in with my family in less than half an hour.
Contrast this to the this hell of mumbai! Can't the scum check his computer and find out if the visa is valid or not. Shame on this scum. I am sending this story to the state department in US, and Indian Embassy, as well as to a few newspapers. Hopefully people realize what a hell hole Mumbai is. Please pass the word. My 20 year old son, who has not been to India, were planning a trip in January but that's off