At just $4.5, a modest sari sold on Meesho reveals how India’s e-commerce startup is systematically undercutting the giants through pennies saved.A sari seller takes home 300 rupees ($3.5) whether they sell on Meesho, Amazon or Flipkart, but the difference is in what they pay: on Meesho, the combined costs for shipping, payment and promotion total only 77 rupees (90 cents) — about half what Amazon charges and one-third of Flipkart’s fees.This brings the merchant’s cost of doing business down to ...