Bimal Roy was a prominent Indian filmmaker who directed several critically acclaimed documentaries, including "Anhey Ghorey Da Daan" and "Nanak Dukhiya Sab Sansar".

The 1984 Indian documentary film "Gandhi", directed by Richard Attenborough, won the Academy Award for Best Documentary Feature.

Satyajit Ray directed the 1955 Indian documentary film "Pather Panchali", which is considered a landmark film in Indian cinema.

The 2003 Indian documentary film "The Hijras" explores the lives of eunuchs in India, shedding light on their struggles and experiences.

Govind Nihalani directed the 1969 Indian documentary film "Aakrosh", which examines the issue of caste discrimination in India.

The 1997 Indian documentary film "Raga: A Journey Into the Soul of Music" explores the life and work of the renowned Indian classical musician Pandit Ravi Shankar.

Shyam Benegal directed the 1975 Indian documentary film "Ankur", which deals with the themes of poverty and social injustice.

The 1988 Indian documentary film "Salaam Bombay!" explores the lives of street children in Mumbai, highlighting their struggles and resilience.

Satyajit Ray directed the 1983 Indian documentary film "Massey Sahib", which examines the life and work of the British civil servant William Massey.

The 2008 Indian documentary film "The Burning Season" explores the issue of bonded labor in India, shedding light on the plight of marginalized communities.

Mrinal Sen directed the 1976 Indian documentary film "Mrigayaa", which deals with the themes of poverty and social inequality.

The 2003 Indian documentary film "The Hijras" explores the lives of the Keralan transgender community, highlighting their struggles and resilience.

Mrinal Sen directed the 1973 Indian documentary film "Chorus", which examines the lives of a group of young people in Kolkata.

The 2008 Indian documentary film "The Burning Season" explores the issue of female infanticide in India, shedding light on the plight of marginalized communities.

Shyam Benegal directed the 1978 Indian documentary film "Junoon", which deals with the themes of love, passion, and sacrifice.