1. 9^th International Conference on Indoor Air Quality and Climate. June 29^th to July 5^th 2002, California, U.S.A.
2. Second General Assembly and International Conference Women Science and Technology for Sustainable Development 8-11 Feb 1999, Cape Town, South Africa.
3. 7^th International conference on Indoor Air Quality and climate July 21-26 1996, Nagoya, Japan.
4. 6^th International Conference on Indoor Air Quality and Climate July 4^th to July 8^th ,1993, Helsinki, Finland.
5. International Conference Indoor and Ambient Air Quality. June 13^th to 15^th, 1988, Imperial college London, U.K.
6. 4^th International concerence on Indoor Air Quality and Climate. August 17^th to August 21^st 1987. Berlin, Germany.
7. 51th International Conference of IAOH February 1^st to February 4^th 2001, New Delhi, India.
8. XIIth International Congress and Exhibition on Research and Development Jan 15-16i 1999, Delhi.
9. XIth International Conference and Exhibition on Environment Dec. 16-17, 1997, Delhi, India.
10. International conference on Women’s Impact on Science & Technology held in Banglore, India 21^st -25^th Nov. 2005
11. International conference on Women Scientists in a changing world 27^th -30^th June, Beijing, China.

National Conference attended and Presented paper:

1. X-ISME Conference held in Delhi College of Engg, Delhi on 8-11 Dec. 1996.
2. National programme on Ion Exchange Polymers  Memberane Technology held in Delhi College of Engg, Delhi on 7^th-8^th Feb 1997.
3. National Seminar on “Challenges in The Management of Water Resources and Environment in the next Millennium on Oct 8^th to 9^th 1999 at Delhi College of Engg Delhi.
4. National Conference on Emerging concepts on Occupational & Environmental Medicine in India 8^th to 9^th Dec 2000 in Delhi.
5. 51th National Conference Challenges for life and Environment in New Millennium, 1^st to 4^th Feb. 2001 organized by IAOH, Delhi.
6. IAEM National Conference on innovative approaches in the management of Environment 17-18 Oct 2003 at D.C.E. Delhi.
7. Conference on Health and Environment March 24^th-25^th, 2006 Centre for Science and Environment.
8. National Seminar on Latest Research and Industrial Trends in Biotechnology and Bio Engineering Dec 19^th 2007 organized by D.C.E. at Delhi.
9. National Seminar on Vehicular Pollution in Delhi after Court’s Direction: An Assessment. Feb 26^th 2008 organized by Green Institute by Research and Development New Delhi and D.C.E. at Delhi.
10. Conference on “Global Warming and Health effect” organized by Indian Association of Occupational Health, Delhi State on 13^th April 2008 at Delhi.
11. National Work shop on Indoor Air Pollution and Health Organised by Teri on 11^th August 2010 ,New Delhi.
12. Conference on “Health Promotion at the workplace” (Occucon-12) organized by Association of Environment & Occupational Health, Delhi, 1^st -4^th Feb 2012, New Delhi.
13. First Annual conference of Association of Environmental & Occupational Health 7^th -8^th July 2012, Delhi.
14. 2^nd Innovation Conclave: Innovation creating the path to sustained Business growth- 22^nd June 2012, Delhi.

Summer Institutes Refresher or orientation Course Attended:

1. Short Term Training programme on Earth Quake Resistant Design of Building sponsored by A.I.C.T.E. from 24.06.96 to 05.07.96 in Delhi.
2. National Training Programme on Occupational and Environmental Epidemiology organized by Centre for Occupational & Environmental Health, Berkeley University of California, 15^th Nov. 20^th Nov.- 1999 in Delhi.
3. Training Programme on understanding Air Pollution and Role of diesel Particles, 6^th -11^th Nov. 2000 organized by University of California, Berkeley USA and Centre for Occupational & Environmental Health in Delhi.
4. Training or Pesticide, Health and Safety from 06-11-2001 to 07-11-2001 organized by Centre for Occupational and Env. Health in Delhi.
5. Training Workshop on “Occupational Health Safety Management from 3^rd -4^th March 2003 organized by centre for Occupational & Env. Health in Delhi.
6. Training Workshop on Occupational Health & Safety from 27^th & 28^th Feb. 2003 organized by COEH University of California, U.S.A. at Delhi.
7. Workshop on Enhancing Awareness of Intellectual property in Technical Initiation by W.I.T.F and Delhi College of Engg on 25^th March 2003 at Delhi.
8. Workshop on Environmental Audit Organized by W.I.T.E and Ministry of Env. & Forest, Govt. of India on 29^th May 2003 at Delhi.
9. Seminar on “Status, Efficiently and Alternative for existing Pollution under Control Certification” organized by I.A. A. P.C & C.P.C.B. on 23^rd Sept. 2004 at Delhi.
10. Workshop on Capacity Building for Seismic Risk Mitigation and Management in Delhi and ISET Annual Lecture Jan 31^st 2004.
11. Workshop on Intelligent Transportation system- New Horizons organized by Civil & Env. Engg, Delhi College of Engg on 5^th April 2005 at Delhi.
12. Workshop on Efficient E-Waste management 8^th -9^th May 2006 organized by Teri at Delhi.
13. Training and Workshop on chemical Industrial Disaster Management April 25^th 2006 organized by FICCI at Delhi.