Can a canal like this be physically possible? How can this be built and how would this affect the subcontinent? Does this necessary improve the economy of the region?
It would be very hard. By the time it is really feasible, rail would be cheaper.
Wouldn't this be offensive to Hindus?
I think the Ganges is considered to be sacred or something. By altering the river in some form, or connecting it unnaturally to the Indus, I'd have to think that this would offend someone.
Weren't dams built around the river?
After doing ten minutes research, I found that the waters of the Indus and Ganges are joined, but the Jumna river that I know is now called Yamuna, and the connection to the Indus is via the Lost Saraswati River, which is underground, making navigation difficult. The Monsoon doesn't help either.
**points towards the Grand Canal**It would be very hard. By the time it is really feasible, rail would be cheaper.
There is a small gap between the two river basins where Chandigarh lies. Maybe a canal can be dug there.
That would require an essentially united India. You can't build a canal that big in the middle ages if your neighbors can realistically swoop in and conquer your lands while the men are building it.**points towards the Grand Canal**
Is it even navigable that far north?