In our maiden X-Unicorns episode, Arpit Agarwal sat down with Niraj Singh of Spinny to discuss his journey from a small town called Daltonganj to becoming a unicorn founder of an online used cars marketplace. After two failed ventures, Niraj hit on his (literal) billion-dollar area with Spinny. But how do you know your idea works? How do you keep going without the validation of venture backing? How do you make sure you hire for success? Tune in for the answers.