Ranjan Kumar Mallik (born 1964) is an Indian electrical and communications engineer and a professor at the Department of Electrical Engineering of the Indian Institute of Technology, Delhi. He held the Jai Gupta Chair at IIT Delhi from 2007 to 2012 and the Brigadier Bhopinder Singh Chair from 2012 to 2017. He is known for his researches on multiple-input multi-output systems and is an elected fellow of all the three major Indian science academies viz. Indian Academy of Sciences, Indian National Science Academy, and The National Academy of Sciences, India. He is also an elected fellow of The World Academy of Sciences, Indian National Academy of Engineering, and The Institute of Electrical and Electronics Engineers, Inc. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Engineering Sciences in 2008. Biography R. K. Mallik, born in November 1964 in Kolkata, the capital city of the Indian state of West Bengal, to Radharaman Mallik and Tapati, earned a BTech in electrical engineering from the Indian Institute of Technology, Kanpur in 1987. His higher studies were at the University of Southern California from where he completed an MS in electrical engineering in 1988 and followed it up with a PhD in 1992. Returning to India, he joined Defence Electronics Research Laboratory, Hyderabad the same year as a Grade C Scientist and worked there for two years till his move to the Indian Institute of Technology, Kharagpur in 1994 as a lecturer. His stay at IIT Kharagpur lasted till 1996 during which period he served as an assistant professor during 1995–96. His next move was to the Indian Institute of Technology, Guwahati as an assistant professor and in 1998 he shifted his base to Delhi to join the Indian Institute of Technology, Delhi where he serves as a professor in the Department of Electrical Engineering. In between, he held the IDRC Research Chair in Wireless Communications from 2009 to 2015, the Jai Gupta Chair from 2007 to 2012, and the Brigadier Bhopinder Singh Chair from 2012 to 2017. He is also associated with Bharti School of Telecommunication Technology and Management of IIT Delhi as a faculty. Mallik is married to Sumona DasGupta and the couple has one child, Upamanyu. Legacy Mallik's researches have