Context: During his day-long whirlwind visit, PM of India performed Sindhu Darshan Puja at Nimu, the forward brigade place in Ladakh.
About the Festival

• The Sindhu Darshan festival is a three-day event celebrated in June every year on the day of the full moon. 
• The festival recognises the Sindhu (Indus) river as a symbol of unity, peaceful co-existence and communal harmony.
• The Sindhu Darshan Festival is a celebration of River Sindhu, also known as the Indus Valley Civilisation. 
• The main reason behind the celebration of Sindhu Darshan Festival is to endorse the Indus River (Sindhu River) as an icon of the communal harmony and unity of India.

About the beginnings

• Lal Krishna Advani and Tarun Vijay, a veteran journalist re-discovered the Sindhu river flowing through Ladakh, when they visited Leh in January 1996. 
• Vijay conceived the idea of a festival on its banks as it has given the identity to India as the names India, Indian, Hindu and Hindustan are derived from indus and Sindhu. 
• Since then it has been attracting people from all walks of life, castes, religions and places specially becoming a pilgrimage for Hindu Sindhis, who in pre-partition days, used to worship her ( in Sindh ), now in Pakistan. 
• For, the purpose that, people of India, know the importance of Sindhu River, Lal Krishna Advani, in 1996, himself a Sindhi, visited Choglamsar ( 8 km from Leh ) and started Sindhu Darshan Abhiyan, with handful of Sindhis.
• The first time this event was held in form of Sindhu Darshan Festival was in October, 1997.

About Nimu,Leh

• Nimu is a small village, located about 50 km from Leh, visited by PM Modi recently at the height of the border tensions between India and China.
• The village is surrounded by the Zanskar range, with a population of 1,100 people as per the 2011 Census, is at the confluence of rivers Indus and Zanskar.
• It has a hydroelectric power plant known as the Nimu-Bazgo dam and is also used by tourists for rafting.
• Nimu is strategically important, situated at 11,000 feet, near Kargil, it proved its worth during the 1999 war.
• It served the Indian Army well when Pakistan attacked Kargil and is the reserve brigade headquarter of the 14 Corps of the Indian Army.
• Its significance can also be ascertained from the fact that the Border Road Organisation (BRO) is constructing a road from Padum in the Zanskar Valley to Nimu, to connect Ladakh to Manali via the Lahaul Valley.