4. The provided text is a detailed biography of Prof. Rajendra Singh, also known as Rajju Bhaiya, who served as the fourth Sarsanghchalak (Supreme Leader) of Rashtriya Swayamsevak Sangh (RSS), a prominent Hindu nationalist organization in India. The biography outlines his early life, education, career, and significant contributions to the RSS.

 

Rajju Bhaiya was born on January 29, 1922, in Shahjahanpur, Uttar Pradesh, to a family with a background in engineering and public service. He had a distinguished academic career, studying at IU from 1939 to 1943 and later becoming a lecturer, professor, and head of the Physics Department at Prayag University.

 

His involvement with the RSS began during his youth, and he quickly rose through the ranks, assuming various responsibilities within the organization. He played a crucial role in expanding the RSS's influence, particularly in Uttar Pradesh, and became known for his dedication and leadership abilities.

 

The biography highlights Rajju Bhaiya's unconventional approach to Sangh work, balancing his responsibilities as a university professor with his commitment to the RSS's mission. Despite his academic achievements, he remained humble and focused on serving the organization and society.