As a young student of intermediate, he walked out of his class in protest against state reorganisation in 1952. He also started in a bus to participate in 1952 Mulkhi Agitation. Then, in 1962, he was part of a campaign which rocked the region. He joined the movement for a separate Telangana state in 1952, when he was a student leader.
As a lecturer, in 1968, he participated in the revived the agitation. He carried out his struggle for Telangana through research and academic studies, and by educating people on the cause. He is known as the original Telangana ideologue. He led several agitations since 1962, transforming into a mass movement after 1969 agitation.
He was associated with the Telangana movement efforts to obtain statehood for Telangana since 1952, stating with Non-Mulki go back and Idli Sambar go back movement. He wanted the “Puri Mutton” to populate the lands of Telangana. In 1969 Jayashankar formed a team with ten members to fight for Telangana. He was the only survivor while the others were killed in police firing. He then started Telangana Janasabha. It was banned by the Indian government. He authored a large number of articles and research papers, in English and Telugu, on various aspects of the Telangana Problem.
He was instrumental in forming the Telangana Development Forum (TDF, USA) in 1999. He was invited by the American Telugu Association (ATA) USA, to speak about the Problems of regional disparities in Andhra Pradesh in July 2000 and July 2002. He was invited by the Telangana Development Forum (TDF) USA to give a series of lectures on various facets of the Telangana Movement in ten major cities of the United States during July/August 2000.
At the time of his death, he was the Chairman of Centre for Telangana Studies which is engaged in research and publication relating to problems of Telangana. He is the founder member of Telangana Aikya Vedika and was on its Executive Committee.
Professor Jayashankar was Registrar of the then Central Institute of English and Foreign Languages (CIEFL) before being appointed Vice-chancellor of Kakatiya University in 1991.
(i) Taught Economics and supervised research at Doctoral Level.
(ii) Made in-depth studies on the problems emanating from regional disparities in the levels of development with special reference to A.P.
(iii)Has to his credit a large number of papers published in the areas of Economic Development and Educational Economics.
He died on 21 June 2011 11.15 AM after battling stomach cancer. He did not marry and remained a bachelor all his life.
At the time of his death, he was the Chairman of Centre for Telangana Studies which is engaged in research and publication relating to problems of Telangana. He died on 21 June 2011 11.15 AM after battling stomach cancer. He remained a bachelor all his life. He sacrificed his life in pursuit of a separate Telangana State.