- Vice-Chancellor, Sri Venkateswara University, tirupati
- Founder, Vice-Chancellor (in-Charge), Yogi Vemana University, Kadapa.
- Vice-Chancellor (in-Charge), Dravidian University (Kuppam) and Sri Krishnadevaraya University (Anantapur),
- Visiting Professor, Universities of Tokyo, Kanazawa and Kyoto, Japan, Humboldt University-Berlin, Germany.
- Senior Professor (C4), University of Greifswald, Germany.
- Member, Executive Council, Sri Krishnadevaraya University
- Member, Board of Governors, Environmental Protection Training and Research Institute (EPTRI), Hyderabad.
- Council Member, AP State Council of Higher Education, Hyderabad.
- Principal and Vice-Principal, University of College of Art and Sciences, Sri Venkateswara University.
- Dean, Faculty of Sciences, Sri Venkateswara University.
- Dean, School of Mathematics and Physical Sciences, Sri Venkateswara University.
- Head, Department of Chemistry and Department of Environmental Chemistry, Sri Venkateswara University.
- Scientific Officier, Twente University of Technology, Netherlands.
- President, Sri Venkateswara University Teachers Association.
Former Vice-Chancellor, Sri Venkateswara University, Tirupati. 201, Ameya Towers, Street No. 12, Tamaka, Hyderabad-500 017, India.
Presently
Presently
Member, Andhra Pradesh Pollution Control Appellate Authority
Member, Executive Council, Central University of Haryana
Professor B.D. Thilak Visiting Felow, Institute of Chemical Technology, Mumbai
Member, Board of Governers, A P Residential Educational Institutions Society
Member, Andhra Pradesh Pollution Control Appellate Authority
Member, Executive Council, Central University of Haryana
Professor B.D. Thilak Visiting Felow, Institute of Chemical Technology, Mumbai
Member, Board of Governers, A P Residential Educational Institutions Society