Professor- Dept. of Information Technology, Indian Institute of Information Technology, Allahabad
Professor- Department of Computer Science and Engineering, Indian Institute of Technology, Indore.
Professor (HAG), Department of Electrical Engineering, Indian Institute of Technology, Delhi.
Principal Scientist- Electrical & Electronics Metrology group, CSIR National Physical Laboratory, Delhi.
Professor, Department of Computer Science & Engineering, Indian Institute of Technology, Roorkee.