Supushpachandra is the name of a Buddhist figure, a bodhisattva

Bodhisattva

In Buddhism, a bodhisattva is either an enlightened existence or an enlightenment-being or, given the variant Sanskrit spelling satva rather than sattva, "heroic-minded one for enlightenment ." The Pali term has sometimes been translated as "wisdom-being," although in modern publications, and...

 who was commanded by the king's law to abstain from teaching dharma

Dharma

Dharma means Law or Natural Law and is a concept of central importance in Indian philosophy and religion. In the context of Hinduism, it refers to one's personal obligations, calling and duties, and a Hindu's dharma is affected by the person's age, caste, class, occupation, and gender...

. Supushpachandra ignored the statute, and was executed by King Shuradatta. An account of his tale can be found in the Samadhiraja sutra. He is also mentioned by Shantideva

Shantideva

Shantideva was an 8th-century Indian Buddhist scholar at Nalanda University and an adherent of the Madhyamaka philosophy of Nagarjuna....

 in the chapter on meditation, verse 106 in A Guide to the Bodhisattva's Way Of Life

A Guide to the Bodhisattva's Way Of Life

The Bodhisattvacharyāvatāra or Bodhicaryāvatāra, sometimes translated into English as A Guide to the Bodhisattva's Way of Life, is a famous Mahāyāna Buddhist text written c. 700 AD in Sanskrit verse by Shantideva , a Buddhist monk at Nālandā Monastic University in India...

.