How is it not genes when peer reviewed medical studies state the same thing over and over again when it comes to indians. They have a phenotype that is low in lean muscle mass, high in body fat and a cardiovascular system that is less efficient than other populations. for an indian to be fit as any other population they must work much harder and even then it is not guarantee they will be as fit. It is a mix of genes, arranged marriages and culture that makes them unathletic. to discount and dismiss genes without any proof is insane and delusional. I am australian and its the same story here, samoans, whites and blacks are the most athletic on average and indians are the least athletic by far even when they train and have access to facilities and proper nutrition. they can get big but they seem to lack speed, explosiveness, stamina and fast twitch muscles. Indians have to been know to be physically weak for centuries. The mughals, afghans that ruled india for hundreds of years knew this about indians and initially didn't want to mix because they knew their descendants would become physically weaker
Quote from the muslim timurids about indians
From the I timuri
"My wazirs informed me that the whole amount of the revenue of India is six arbs; now each arb is a 100 krors, and each kror is a 100 lacs, and each lac is a 100,000 miskals of silver. Some of the nobles said “By the favour of Almighty God we may conquer India, but if we establish ourselves permanently therein, our race will degenerate and our children will become like the natives of those regions, and in a few generations their strength and valour will diminish.”