Meaning of tatvavigyan in english
Interpreting tatvavigyan - तत्वविज्ञान
As noun :
metaphysics Ex:  Hemingway extensively discussed the metaphysics of bullfighting: the ritualized
Suggested : the branch of philosophy that treats of first principles, includes ontology and cosmology, and is intimately connected with epistemology
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tatvavigyan
can be used as noun.. No of characters: 11 including consonants matras.
Transliteration :
tatvaviGYaana