Pandit Din Dayalu Sharma (1863–1937) was an Indian Hindu religious leader and social reformer known for his efforts in promoting and preserving Sanatan Dharma during the colonial period. Born in May 1863 in Jhajjar, Haryana, he belonged to a Gaur Brahmin family. His father, Pandit Ganga Sahai, was a scholar and religious figure.^{[1][2][3][4][5][6][7]}

Sharma began his early education in Persian and Urdu at a maktab before attending an English-medium madrasa in Hasangarh. His academic focus later shifted to Hindu philosophy and scriptures. Under the guidance of Pandit Uday Prakash Dev Sharma, he gained extensive knowledge of Sanskrit and the Vedic texts, which became the foundation of his religious and social work.^[1]

In the early 1880s, Sharma engaged in socio-religious initiatives focused on the preservation of Hindu traditions. In 1883, he established the Panchayat-i-Taraqqi-i-Hanud (Council for the Advancement of Hindus), which was later renamed Society Rifah-i-Am to include Muslim members. The organization aimed to promote Hindu interests while fostering social cohesion among diverse communities. He also founded the newspaper Hariyana to address religious and social issues but later distanced himself from the publication due to editorial disagreements.

In 1885, Sharma became the editor of Mathura Akhbar, a monthly Urdu journal dedicated to the defense of Hindu religious principles. His editorial contributions and writings strengthened his influence among Hindu scholars and religious leaders. During this period, he traveled extensively to religious centers such as Mathura and Lahore, participating in debates with Christian missionaries and reformist groups..^[1][2]

Sharma’s efforts to unify Hindu society led to the establishment of the Bharat Dharma Mahamandal in Haridwar following his participation in the second Indian National Congress session in 1886. The organization aimed to preserve orthodox Hindu practices, promote Sanskrit education, and strengthen religious institutions. It attracted prominent figures and expanded its influence through sessions held in Haridwar, Mathura, and Lahore.

An advocate for education, Sharma played a significant role in the founding of Sanatan Dharma schools and colleges, including Hindu College in Delhi and Sanatan Dharma College in Lahore. His initiatives emphasized the promotion of Sanskrit and Hindi education and facilitated the establishment of pathshalas, libraries, and reading rooms.

While committed to orthodox traditions, Sharma supported gradual social reforms, including opposition to child marriage, untouchability, and substance use. He also contributed to the establishment of orphanages and shelters for the destitute, emphasizing internal community development..^[1]

Although committed to orthodox Hinduism, Sharma recognized the need for social reforms. Under his leadership, the Sanatan Dharma Sabha actively opposed child marriage, advocated for widow remarriage, and worked toward the elimination of untouchability. The organization also promoted ethical conduct, discouraged the consumption of tobacco and alcohol, and sought to reduce excessive litigation expenses. Additionally, it opposed the presence of prostitution at social gatherings, reflecting its broader efforts to uphold moral and social discipline within Hindu society.^[1]