I want to know the answer to the following question:
What do ancient Hindu writings identify as the means to knowledge and truth?
All the background I'm provided with is that "For example, the Cārvāka nāstika philosophy holds that only one (perception) is an epistemically reliable means of knowledge, the Samkhya school holds three are (perception, inference and testimony), while the Mīmāṃsā and Advaita schools hold all six are epistemically useful and reliable means to knowledge.". Is that enough to answer the question?