Dr. Palanivel Thiagarajan (PTR) (born 7 March 1966) is an Indian politician and the current Minister of Information Technology and Digital Services of Tamil Nadu.

He obtained a master's degree in operations research and a Ph.D. in human factors engineering/engineering psychology at University at Buffalo.

[4] He is a patent holder of Methods & systems for providing structured loan commitment transactions.

[6] In 2001 he joined Lehman Brothers Holdings Inc. as Trader and Co-Portfolio Manager – Firm Relationship Loan Portfolio.

[13] In a cabinet reshuffle on 11 May 2023 by the Tamil Nadu government, he was made the Information Technology and Digital Services minister of the state.