Bihar Chief Minister Nitish Kumar eats 'Langar' during his visit to Takhat Sri Harimandir Ji Sahib Gurudwara on the 354th birth anniversary of Guru Gobind Singh, in Patna.

An illuminated Harmandir Sahib (Golden temple) on the eve of the 355th birth anniversary of the 10th Sikh Guru Gobind Singh Ji, in Amritsar.

Devotees wait to offer prayers at Gurdwara Fatehgarh Sahib on the occasion of Shaheedi Jor Mela, in Fatehgarh Sahib.

Prime Minister Narendra Modi visits Gurdwara Rakab Ganj Sahib on the occasion of the 400th Prakash Parv of Guru Teg Bahadur, in New Delhi.

People click selfies with Prime Minister Narendra Modi during his visit to Gurudwara Rakab Ganj Sahib on the occasion of the 400th Parkash Parv of Guru Tegh Bahadur, in New Delhi.

Prime Minister Narendra Modi being felicititated during his visit to Gurudwara Rakab Ganj Sahib on the occasion of the 400th Parkash Parv of Guru Tegh Bahadur, in New Delhi.

Prime Minister Narendra Modi offers prayers at Gurdwara Rakab Ganj Sahib on the occasion of the 400th Prakash Parv of Guru Teg Bahadur, in New Delhi.

Prime Minister Narendra Modi offers prayers at Gurudwara Rakab Ganj Sahib on the occasion of the 400th Parkash Parv of Guru Tegh Bahadur, in New Delhi.

Fireworks light the sky at the illuminated Golden Temple on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, in Amritsar.

A young devotee lights earthen lamps at the illuminated Golden Temple on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, in Amritsar.

Devotees visit the illuminated Gurudwara Bangla Sahib on the occasion of birth anniversary of Guru Nanak Dev, in New Delhi.

Illuminated Gurudwara Rakab Gunj Sahib (foreground) on the occasion of birth anniversary of Guru Nanak Dev, in New Delhi.

Sikh boys in traditional dress attend a religious festival to celebrate the birth anniversary of their spiritual leader Baba Guru Nanak Dev, at Nankana Sahib, near Lahore, Pakistan...

Devotees eat 'langar' at Gurdwara Nakahindola on the occasion of Guru Nanak Jayanti, in Lucknow.

Sikh devotees offer special prayers at a gurdwara on the occasion of Guru Nanak Dev Ji's birth anniversary, in Srinagar.

A volunteer distributes langer packets to the devotees on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, at a Gurudwara in Mira Road, Mumb...

Devotees undergoes thermal screening at a Gurudwara on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, at Mira Road in Mumbai.

A volunteer helps a devotee sanitize his feets at a Gurudwara on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, at Mira Road in Mumbai.

Devotees pray at the Gurudwara on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, at Mira Road in Mumbai.

Devotees pray at the Gurudwara on the occasion of 551st birth anniversary of Guru Nanak Dev, the founder of Sikh religion, at Mira Road in Mumbai.