London Rathayatra – 50th Anniversary – 24th June 2018 (Album of photos)
Srila Prabhupada: It is imperative that all devotees in Krishna consciousness practice chanting some mantra. Certainly one should chant the Hare Krishna mantra, which is the maha-mantra, or great mantra, and also one should practice chanting cintamani-prakara-sadmasu or the Nirsimha strotra (ito nrsimhah parato nrsimho, yato yato yami tato nrsimhah) (Srimad-Bhagavatam, 8.3.1 Purport)
Find them here: https://goo.gl/BLiAzQ