Ph.D. students (ongoing):   
Aditi Kathpalia, NIAS (August 2016 - current). Topic: Theoretical and Experimental Investigations into Causality, it’s Measures and Applications
Harikrishnan NB, NIAS (December 2018 - current).  Topic: Investigations Into Learning Algorithms In Intelligent Machines

Ph.D. (graduated):

Karthi Balasubramanian (successfully defended thesis June 2016, @ Amrita Vishwa Vidyapeetham, Amritapuri), is currently at the Coimbatore Campus, Amrita University.  His thesis is titled "A New Complexity Measure for Time Series Analysis and Classification".
Please see: Nithin Nagaraj, Karthi Balasubramanian, Sutirth Dey, "A New Complexity Measure For Time Series Analysis and Classification", Eur. Phys. J. Special Topics 222, pp. 847–860, 2013. (link) Download MATLAB code 'ETC.m'