I had a couple of comments asking how to buy Amar Chitra Katha. You could by the entire collection here at the online store of amarchitrakatha.com
I have ordered several titles from time to time whenever newer titles released. You could order the complete collection, which technically should contain every title of theirs, but you may verify if it really does. Nonetheless, they are bringing in older titles that have been out of print. So you may need to check once in a while. The comics are also available in other Indian languages.