Chandragupta of the Mauryan Empire was a Mongoloid Man

Chandragupta of the Mauryan Empire who beat the Seleucid Empire and married Seleucid Nicator's daughter was a Mongoloid Man.

His grandson Ashoka who unified for the first time in the history of the Subcontinent unified North and South India was a Mongoloid Man. His iconic lion pillar is now part of the emblem of the Republic of India.

Chanakya, Chandragupta's teacher and advisor, who wrote the Indian version of Sun Tzu's art of war, was envisioned as a Mongoloid Man in a 1915 Indian painting by an Indo- Aryan artist for a printed publication. Not a coincidence. There was -for more than two millenia- a general consensus among Indo- Aryans on what the Sakya and their vassals looked like.

They were Kshatriya (Warrior caste) of the Sakya lineage which Gautama Buddha also belongs to. Ashoka presented himself as "Buddhi Sakya" in one of his inscriptions, emulating his great religious ancestor(whether he was a direct descendant through Rahula or simply a later member of the same clan is uncertain- the latter is more likely).
Gautama Buddha Sakyamuni/ Siddartha Gautama is depicted as having strong Mongoloid features in early paintings and statues, even Greco- Buddhist ones(contrast his features with those of Kushan devotees or Hercules/Vajparani guardians standing next to him).
Paintings and Murals found in Bihar and Uttar Pradesh show a yellowskinned Man with extreme monolids surrounded by smaller people with a similar appearance. A portrait of Buddha, stored in the British Museum, shows a Mongoloid Man with beard. It's a copy of many earlier copies of an ancient original painting.
The Sakya were described as being of golden skin/having a "golden hue" with "skin as soft as bronze", Gautama Buddha in his younger years was described as a great archer and warrior, having been tall and "robust", a feature commonly associated with Mongoloid peoples(can also be observed in a sculpted artwork of 3 Buddhas flanked by two Kushans who are of slighter build than the three Buddhas, though taller because they don't have topknots[which also happens to be a very East Asian/South East Asian traditional hairstyle]).
The Sakya came from a region in Nepal/North East of India which was considered "mleccha"(barbarian) and is to this day populated by different Mongoloid peoples. The Sakya of modern Nepal are predominantly mongoloid with slight Indo- Aryan admixture though they look much more stereotypically mongoloid than say Isman Thoyib of Indonesia and he is in my personal opinion the epitome of the Indonesian Austronesian Mongoloid phenotype.

I'm too lazy to post all the links and references, but you could probably look them up yourselves, if you are interested enough.

The Mauryan Empire is considered to be one of the two greatest Empires in Indian history along with the Gupta Empire.

The Gupta Empire too was established by a Mongoloid people from the North East of India. They were the vassals of the Bhaarshivas and Naga, but came to power later on. Look up Naga people on Wikipedia and you will soon come to the same conclusion. They were one of the original inhabitants of North East India and migrated West and South into Mainland India.
Look up Samudragupta on wikipedia and examine the coin depicting him. His phenotype is Mongoloid. His father Chandragupta I wears earlobe enlarging earrings still seen in South East Asia and North East India( or Western South East Asia, according to secessionist groups in the Seven Sister States).
The Vakataka- Gupta period is considered to be the apex of the Gupta Empire. One of the great Gupta emperors (Chandragupta II)- who also received Chinese traveller Faxian at his court- married his half Naga daughter (Naga of Padmavati in Central India meaning Indo- Aryan, not Naga of North East India) to a Vakataka emperor (Central India and Deccan meaning Indo-Aryan/Dravidian) who died shortly after. She ruled for 20 years in place of her sons.
One of the cave paintings of that period show a male looking Mongoloid Buddhist guardian deity next to an South Indian Indo- Aryan female looking Buddhist deity.

https://upload.wikimedia.org/wikipedia/commons/c/c5/Ajanta_Padmapani.jpg

https://upload.wikimedia.org/wikipedia/commons/0/0e/Indischer_Maler_des_7._Jahrhunderts_001.jpg

The Ahom Kindgom, which was Tai in origin and not indigenous North East Indian, could have been the third dynasty from the North East to rule the Mainland of India. They ruled for 600 years continuosly, absorbing Hindu culture and influences, until they were annexed by the Burmese.

Though they were Mongoloid, they were also perfectly Hindu culturally, just as the Mughal Gurkani Dynasty of Humayun(Babur the founder of the Mughal dynasty leaned towards Turkic in language and culture as is made evident by the language his biography the Baburnama was written in. He was highly influenced by Ali Shir Navai, a Chagatai Turkic intellectual) was perfectly Persianized.