https://www.slideshare.net/slideshow/indus-valley-civilization-ppt/36369817 for Dummies
• They learned for making iron applications and with axes and plow they cleared forests and proven agricultural communities within the Ganges valley. • The Aryans step by step lost the tribal political Firm they'd introduced into India and evolved into modest kingdoms with official governments. Plan B for UPSC learners is to teach on YouTube,