The concept of "Sarvodaya" was founded by Mahatma Gandhi. "Sarvodaya" is a Sanskrit term that translates to "the welfare of all." It is a socio-economic and political philosophy that promotes the upliftment and well-being of all individuals in society.

Option 1: Vinobha Bhave: Although Vinobha Bhave was a prominent disciple of Mahatma Gandhi and played a significant role in popularizing the concept of Sarvodaya, he is not the founder of the concept.

Option 3: Jai Prakash Narayan: Jai Prakash Narayan, also known as JP, was an influential political leader in India, but he is not the founder of the concept "Sarvodaya."

Option 4: K G Mushroowala: There is no known connection between K G Mushroowala and the concept of "Sarvodaya."

Therefore, the correct answer is option 2: Mahatma Gandhi.