Question: Are there only seven centres?

Sri Chinmoy: No, there are more. Below the navel, below the spine, there are other centres. There are centres in the subconscient or inconscient planes in the knee, the ankle, the instep of the foot, the toes. When these centres are opened up, one gets full mastery over his physical nature and it becomes quite easy to bring about the total transformation of his earthly life.

From:Sri Chinmoy,Kundalini: the Mother-Power, Aum Press, 1973
Sourced from https://srichinmoylibrary.com/kmp