“Vimanika Shastra” or the correct “Vaimaanika-shastra” (Skt. वैमानिक शास्त्र, Vaimānika Śāstra IAST - “The Science of Aeronautics”) is a Sanskrit manuscript about Vimanas - flying machines described in the ancient Indian epics in Sanskrit.
According to some sources, "Vimanika Shastra" was discovered in 1875 in one of the temples in India. It was compiled in the 4th century BC. sage Maharsha Bharadvaja, who used even more ancient texts as sources. According to other sources, its text was recorded in 1918-1923. Venkatachaka Sharma in the retelling of the sage-medium, pandit Subbraya Shastri, who dictated 23 books of the Vimaniki Shastra in a state of hypnotic trance.