Flipkart Co-founder Binny Bansal said he and Co-founder Sachin Bansal got to know what search engine optimisation (SEO) is six months after launching Flipkart. "I think we got pretty lucky...six months out, our SEO started working and from then on, we kept scaling 30-40% month-on-month," Bansal said. "We started with seed capital of $10,000...We didn't have money...[for] marketing," he added.