Which Indian school of thought considers all knowledge as relative ?

School of thought

Explanation

Buddhism

• The Buddha's epistemology has been compared to empiricism, in the sense that it was based on the experience of the world through the senses.

Vedant

• Pramāṇa (Sanskrit: प्रमाण) literally means "proof", "that which is the means of valid knowledge" It refers to epistemology in Indian philosophies and encompasses the study of reliable and valid means by which human beings gain accurate, true knowledge.
• The focus of Pramana is the manner in which correct knowledge can be acquired, how one knows or does not know, and to what extent knowledge pertinent about someone or something can be acquire

Jainism

• Jainism made its own unique contribution to this mainstream development of philosophy by occupying itself with the basic epistemological issues.
• According to Jains, knowledge is the essence of the soul.
• This knowledge is masked by the karmic particles. As the soul obtains knowledge through various means, it does not generate anything new. It only shreds off the knowledge-obscuring karmic particles. 
•  According to Jainism, consciousness is a primary attribute of Jīva (soul) and this consciousness manifests itself as darsana (perception) and jnana (knowledge).
• According to the Jain text, Tattvartha sutra, knowledge (Jnana) is of five kinds:
  • Sensory knowledge
  • Scriptural knowledge
  • Clairvoyance (Avadhi Jnana)
  • Telepathy (manahparyaya jnana)
  • Omniscience (Kevala Jnana)

Islam

• The core idea of Islamic knowledge evolves from the concept of Divine Law or absolute knowledge as obtained through faith from the Quran.