Not this again

There is little distance between India and Egypt if you take the sea route, which is how Ancient Indians had quite a few wars with Yemen.
Okay, so the cow thing... hmm... here is where it came from:
10,000 years ago the last ice age ended. It is at this time that India started heating up as well. Around 7000 years ago, port cities across the world started sinking. These floods have now been timed to have occurred during different milleania, but most historians agree that most of the ancient port cities sank between 5000 and 3000 BC.
One such network of metropolitans existed in the gulf of Cambay. In fact, the following article states that the Indus Valley Civilization was a less advanced version of mother civilization that had existed in the gulf of Cambay around 10000 BC.
archaeologyonline.net/artifacts/cambay
When Cambay metropolitans existed, Africa by sea was a stone's throw away!
The heating caused the people living in the cities to go inland, which is when problems related to food, clothing, and all started occurring. Inland places were just jungles with mosquitoes and snakes. And unlike the climate at port cities, the climate inland was harsh and dry. Draught became a part of life.
When no one could come up with a solution, a revolutionary king named Krishna started popularizing the cow as a domestic animal. And made it sacred. Irrespective of the severity of the draught, the indigenous cows of central India were able to survive and yield milk. Milk could be turned into cheese, butter, ghee(to be used in place of cooking oils), and so on. The cow's urine, which is highly acidic, was used to kill parasites. And the cow dung was burnt to keep the mosquitoes away. Once, he made something part of a religion, the god fearing ancient people decided to domesticate more cows. And death via droughts reduced. But, the climate still remained a problem.
So, later he took all of his subjects and migrated back to a port city in western India, which had been called Dwarka since 12000 BC. Land was reclaimed for this port city, which is just 4-5 miles off of the current coastline. That city sank, but the Gujaratis have stayed put and are the richest merchants in the world benefiting from millennia of unchallenged trade and growth.
This is why, you will see a lot central Indians struggling to survive. There is nothing there to suvive on, who know when they'll learn. But, you'll never see a poor Gujarati.

Gandhi was a Guj and he became a Barister after studying in London. He was able to keep the campaign together because he was filthy rich. The loin cloth just made him connect well with the inland folk. The British crown has been indebted to the Tatas for over 200 years. And Ambanis own much of the world's oil outside of ME. Adanis now own much of the coal, ever since the Australian govt allowed them entry into Aus. Merchant ships still carry much of the world's goods and wealth, and Gujaratis own much in that industry. So, do they mind worshipping cows with all the benefits that Krishna bestowed on them by migrating them back to the ports, I don't think so.