In the following year he acted in Enga Veettu Penn (1965), Panchavarna Kili, where he played in a dual role, and the film become a commercial success.
Jaishankar starred in Kuzhandaiyum Deivamum (1965), where he played a divorced husband, an adaptation of Disney's The Parent Trap, directed by Krishnan–Panju, produced by AVM Productions.
In 1969, he acted in a comedy film Poova Thalaiya, where he played the role of a successful son-in-law, who will compete with an arrogant aunt.
[5] Jaishankar worked under Modern Theatres film such as Iru Vallavargal (1966), Vallavan Oruvan (1966), Kadhalithal Podhuma (1967), Naangu Killadigal, Neelagiri Express (1968), CID Shankar, Karundhel Kannayiram (1972), Thedi Vandha Lakshmi (1973).
Between 1980 and 1999 Jaishankar emerged with latest actors like Rajinikanth, Kamal Haasan, Vijayakanth, Sathyaraj, Thiagarajan, Mohan, Prabhu, Arjun, Vijay and played lead villain and in character role.
In Vidhi (1984), he played a rich criminal lawyer and father of playboy son, the film became a commercial success.
[6] In 1989, he acted in science fiction-horror film Naalai Manithan, in which he played a mad scientist who invents as drug which gives back life to the dead if injected within two hours of death, it became a profitable venture.