Sridhar's

• Fellow of the Indian Phytopathological Society (1979).
• Fellow of the National Academy of Agricultural Sciences (2000).
• Dr. K.C. Mehta and Manoranjan Mitra Memorial Award for the year 2001 by the Indian Phytopathological Society (2003).

• Challenges and accomplishments in rice improvement and rice production in India. Part I of First G. Rangaswami Endowment Lecture. Feb. 28, 1991, Centre for Advanced Studies in Botany, University of Madras, Madras.
• Physiology of disease resistance in rice to blast. Part II of First G. Rangaswami Endowment Lecture. March 1, 1991, Centre for Advanced studies in Botany University of Madras, Madras.
• Opportunities for managing bacterial blight and blast of rice. FAO endowment lecture 1999-2000. Dec 28, 1999. Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.

• Member, editorial board (1977, 1981, 1982, 1983, 1990-91, 1994- 1997) of "ORYZA" a research journal devoted exclusively to rice research - published by Association of Rice Research Workers.
• Editor-in-Chief of ORYZA (1986-89).
• Member, Editorial Board of Indian Phytopathology (1986-88, 2000-2001).
• Assoc. Editor (Fungal Pathology) of Indian Phytopathology (2002, 2003).
• Member, Management Committee of the Central Rice Research Institute (ICAR), Cuttack (1989-1991, 1996-1999).
• Member, Research Coordination Committee of the Central Rice Research Institute (ICAR), Cuttack (1991- 1999).