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Honoured to receive this appreciative mail from
Prof Mira Bhargava, Professor of Mathematics at Hofstra University, Hempstead, New York, United States. She is the
mother of Manjul Bhargava (Fields medallist).
Subject: Very good article!
From: Mira Bhargava
Date: 08/28/2017 03:35 AM
Dear Dr. Parthasarathy,
Namaste! I was just reading your two fascinating paragraphs about Indian cryptology which are from an unfinished article.
Would like to read your appropriately titled article
'Alice and Bob can go on a Holiday'. If it is not too much trouble could
you send it to me. Thanks! Otherwise I will search for it and find it.
In the small report " Indian Contributions to Cryptography" you have as if taken this sentence from my
mouth, "It is interesting to note that this system is known as the Arabic numeral system in India, whereas it is
called as Hindu numerals, in the Arab world. " I have been saying this in India to Educationists and laymen for
decades but no one seems to care in India.. In America fortunately the new books are now calling it the
Hindu-Arabic number system and gradually I believe it will become the Hindu number system.
I was just reading the introduction in the Ph. D. thesis on cryptography in an Indian Research Innstutution
and was surprised that it talks about the Greeks and the Romans but does not mention the more ancient
substitution ciphers of India like the Mlecchita Vikalpa. Why are Indians unaware of their own ancient
achievements? (David Kahn's book on History of Cryptography mentions the Vatsyayana Cipher.)
Professor of Mathematics
Footnote: The above articles (and more) can be downloaded from