What medium did many younger artists in India use to imitate the style of a photograph or television screen after the popularity of photography?

Oil or acrylic

Answer:  Oil or acrylic
Many younger artists used oil or acrylic to paint in the manner of a photograph or television screen.

Photography, long regarded as the rival of painting because of its easy copy of world, gave new ideas to the artists. They developed a new technique called ‘photorealism’, which was used by Atul Dodiya in Bapu at Rene Block Gallery, New York. Many younger artists used oil or acrylic to paint in the manner of a photograph or television screen. T. V. Santosh and Shibu Natesan used photorealism to comment on communal violence on one hand and at the same time, gave us a glimpse of the new look that cities had acquired with India’s technological advancements.