**Lectures ( in Seminars/Symposia/Conferences) Delivered:**

(**One-hour**)Invited Lecture, Applied Mathematics Section,

(**One-hour **)
* Invited Lecture,Indian Society for Technical Education
- *

(**One-hour**)
* Invited Lecture, *Department of Mathematics,

(**One-hour**)
*Invited Lecture, *Department of Mathematics, I.I.T. Bombay (Jan. 8, 1988).

(**Half-hour**)
*Invited Lecture, Indian* Science Congress, Mathematics Section,

(**Series of Invited** **Lectures**) Department of Mathematics and Statistics,

(**2 of One-hour each**) *Invited Lectures, *

(**Half-hour**)
*Invited Lecture,* Indian Mathematical Society - Symposium on "Recent advances in Nonlinear Analysis", held at the

(**Series of Invited Lectures**) Department of Mathematics and statistics, R.D.University,

(**2 of One-hour each**) *Guest Lectures,*

(**One-hour**)
*Guest Lecture, *Workshop in Mathematics, Department of Mathematics, IIT

(**One-hour**) *Invited Lecture,* Department of Mathematics,

(**One-hour**) *Invited Lecture,*

(**One-hour**) *Invited Lecture,* Department of Mathematics, I.I.Sc.

(**One-hour**)
*Invited Lecture,* Seventh Annual Conference of Vijnana Parishad of

(**One-hour**) *Invited Lecture,* Department of Mathematics, IIT

(**One-hour**) *Invited Lecture,* International Conference on Scientific Computing and modeling, S.N. Bose Centre for Basic Sciences,

(**One-hour**) *Invited Lecture,* International Conference of the

(**One-hour**) *Invited Lecture,* Joint
9^{th} National Conference of Vijnana Parishad of India on Applied and Industrial Mathematics and
5^{th} Annual Conference of Indian Society of Information Theory and Applications held at NSIT, New Delhi (February 2002).

(**One-hour**)
*Invited Lecture,* National Seminar on Recent Advances in Fluid Mechanics held at

(**One-hour**)
*Popular Lecture,* Mathematics Association of I.I.T. Bombay and Bombay Mathematical Colloquium (under the Popular Lecture Series in Mathematics) held at the Department of Mathematics, IIT Bombay (October 25, 2002).

(**One-hour**) *Invited Lecture, *National Seminar on Current Trends in Mathematics held at the

(**One-hour**)
*Invited Lecture, *Department of Mathematics, Banaras Hindu Uni-versity
(

(**One-hour**)
*Invited Lecture, *International Conference on Non-linear wave phenol-menon, IISc Bangalore
(

(**One Hour**)
*Key Note Address,* National Conference on Information Technology, Operations Research and Computing held at Dr. B.R. Ambedkar University, ^{th} April 2004

(**One Hour**)
*Invited Lecture*, delivered at the Department of Mathematics, Univesity of Southern California
(

(**40 Minutes**) *Invited Lecture,* Fourth World Congress of Nonlinear Analysts 2004, organized by the Florida Institute of Technology, held at Orlando, Florida (July 3, 2004)

(**One Hour**)
*Inaugural Address*, Workshop on Optical Communication, organized by the Department of Electronics and Telecommunication Engineering, VES Institute of Technology, Mumbai (August 8, 2004).

(**One-hour**)
*Invited Lecture, *International Conference on Mathematical Fluid Dynamics held at the Department of Mathematics and Statistics, University of Hyderabad, Hyderabad (December 3, 2004).

(**Half-Hour**)
*Invited Lecutre*, delivered at a research conference on New Perspectives for Boundary Value Problems and their asymptotics held at the University of Texas-Pan American, USA (May 17, 2005).

(**One-Hour**)
*Invited Lecutre*, delivered to the Applied Mathematics and Physics Unit of ISI Kolkata (April, 2006).

(**One-Hour**)
*Invited Lecutre*, delivered at Bhaskracharya Pratisthana, Pune University (Nov, 2006).

(**One-Hour**)
*Invited Lecutre*, delivered at Indian Science Congress, held at Annamalai University (Jan. 2007).

(**Half-Hour**)
*Invited Lecutre*, delivered at the American Mathematical Society (AMS) meeting held at DePaul University, Chicago, USA (Oct, 2007).

(**Half-Hour**)
*Invited Lecture*, delivered at the AMS meeting held at the
University of Albuquerque, New Maxico, USA (Oct, 2007).

(**One-Hour**)
*Invited Lecutre*, delivered at the Department of Mathematics, Stanford University, USA (Jan, 2008).

(**One-Hour**)
*Invited Lecutre*, delivered to the faculty and PG students under the Distinguished Colloquium Sereis at North Maharashtra University (March, 2008).

(**One-Hour**)
*Invited Lecutre*, delivered the National Seminar on Analysis, Differential Equations and Applications, held at M.S. University, Baroda (Jan, 2009).

(**One-Hour**)
*Invited Lecutre*, delivered at the Seminar meeting of Hyperbolic Systems of PDEs held at IIT Bombay from 20-23 Nov. 2009.

(**One-Hour**)
*Invited Lecutre*, delivered at the Indian Society of Theoretical and Applied Mechanics (ISTAM-2009) held at NSIT, New Delhi from 18-21 Dec. 2009, and chaired a Technical Session on Mechanics of Fluids.