Some Indian scientists have hit out at the claims made at the annual Indian Science Congress, inaugurated by Prime Minister Narendra Modi.
Remarks made by some of the delegates included that ancient Hindus had invented stem cell research and gravitational waves should be renamed as "Narendra Modi Waves".
Hindu mythology and religion-based theories have increasingly become part of the Indian Science Congress agenda.
At the conference, the head of a southern Indian university cited an old Hindu text as proof that stem cell research was discovered in India thousands of years ago.
G Nageshwar Rao, vice chancellor of Andhra University, also said a demon king from the Hindu religious epic, Ramayana, had 24 types of aircraft and a network of landing strips in modern-day Sri Lanka.
Kannan Jegathala Krishnan claimed “there was no bend in space-time gravity” and that Albert Einstein “didn’t even understand it.” He also called Einstein’s discoveries “misleading.”
He added that Isaac Newton was “not able to understand” gravitational repulsive force.
The Indian Scientific Congress Association expressed "serious concern" at the remarks.
"We don't subscribe to their views and distance ourselves from their comments. This is unfortunate," Premendu P Mathur, general secretary of Indian Scientific Congress Association, told AFP news agency.
"There is a serious concern about such kind of utterances by responsible people."
Last year, Indian academics claimed the first working airplanes were invented by and Indian named Shivakar Babuji Talpade eight years before the Wright brothers.
In 2017, the education minister for the western state of Rajasthan said it was important to “understand the scientific significance” of the cow, as it was the only animal in the world to both inhale and exhale oxygen.
In 2014, Prime Minister Narendra Modi said proof that cosmetic surgery existed in ancient India was shown the the story of the Hindu god Ganesha, whose elephant head is attached to a human body.