Who among the following is one of the founder members of Bhartiya Jana Sangh?

Shyama Prasad Mukherjee

The correct answer is Option (3) - Shyama Prasad Mukherjee

Shyama Prasad Mukherjee is widely recognized as a founding member and the first president of the Bhartiya Jana Sangh (BJS).

Historical Documentation: Historical records and references consistently mention Shyama Prasad Mukherjee as a key figure in the establishment of BJS in 1951 [Britannica Bharatiya Jana Sangh, Testbook BJS founder].

Political Role: Mukherjee played a pivotal role in shaping the BJS's ideology and initial political direction.