d20 Despot: Fixing the Weapons Table, Part 5: Indian Weapons
The second campaign I ever ran was set in Chattara, a mighty multicultural empire ruled over by a caste of turbaned, woolly rhino-riding dwarves. I did a lot of research into Indian weapons at the time, to make sure my party could really get the feel of the land they were adventuring through.
Indian Weapons for D&D/Pathfinder
One thing I've done a number of times is update the weapons table to include new weapons, make existing weapons more realistic, or solve balance issues. In this case, I added a whole bunch of weapons from the Indian Subcontinent, a sadly under-explored area for campaign settings.