Aretto, a brand specializing in children's shoes, brought the world's first expanding shoes to Shark Tank India.Satyajit Mittal is the CEO and founder of Aretto, headquartered in Pune, Maharashtra.Aretto's patented technology allows their shoes to organically grow up to three sizes to fit children's feet.During their pitch on Shark Tank India, Aretto sought Rs. 80 lakhs for 1% equity, valuing the company at Rs. 80 crore.