Sequels
Copyright rules and their strict enforcement by the Kalki group dissuaded many writers from attempting a sequel (though Kalki himself broad mindedly suggested other writers to take it up in the book's afterword). Nandhipuraththu Nayagi by Vembu Vikiraman is one sequel in which the author uses different spellings for all major characters to avoid infringement accusations. The prequel of the ponniyin selvan is written by Dr L. Kailasam in his novel Malarchcholai Mangai
After nationalisation of the works of Kalki Krishnamurthy, the copyright of Ponniyin Selvan ceased to exist. Many publishers now print the same book free of royalty charges.
Balakumaran's Udayar, published in the 21st century, is set several years after Ponniyin Selvan and depicts the life of Rajaraja Cholan during the construction of the Tanjore Brihadeeswarar Temple.
Balakumaran's Kadigai runs parallelly to Ponniyin Selvan showing the lives of Ravidasan and his allies, and their fictional guru Banugopan. This novel depicts their association with Veerapandian, outlines Adithya Karikalar's victory over Veerapandian and ends with Ravidasan avenging the death of Veerapandian by killing Adithya Karikalar..
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