[5] Nongkynrih saw an opportunity to bring Indian and Western classical music together and founded the Shillong Chamber Choir with like-minded musicians.

[6] The Choir made their debut performance as a group at the Pinewood Hotel in Shillong on January 14 and 15, 2001, and were mentored by Nongkynrih as their maestro.

On 30 October 2011, they collaborated with Shankar, Ehsaan and Loy at the second Global Indian Music Awards (GIMA) which was shown on Colors channel.

[11] In March 2013, the choir performed at a fundraiser organized by actor Rahul Bose’s NGO, The Foundation, in Mumbai.

[12] They showcased an hour-long recital that featured opera, Bollywood favorites, a tabla-piano medley, and a solo by the Ustad.

[13] The same year, they collaborated with the State Election Commission and created a music video entitled Just One to promote voting.

They again collaborated with Bachchan for a fundraiser in Jodhpur in 2015 and finally in 2016 for the Global Citizen India Concert in Mumbai which also saw acts like Jay Z and Coldplay.

Another noted event was the telecast of their rendition of Vande Mataram- I’m So Proud To Be An Indian during the attempted satellite landing of Chandrayaan 2, which aired live on National Geographic on 6 September 2019.

[18] The themes explored by the Shillong Chamber Choir's music range from love and relationships to social issues and spirituality.