Q. Who co-founded the Poona Sarvajanik Sabha?
Answer: Mahadev Govind Ranade
Notes: Mahadev Govind Ranade co-founded the Poona Sarvajanik Sabha in 1870. It was among the earliest political associations in Maharashtra, aimed at representing public interests before the British. Ranade was a key figure in India's social and economic reforms during the late 19th century.