Digital payments company Razorpay has secured board approval to convert into a public limited company.The move is part of Razorpay's efforts to redomicile its parent entity to India from the United States.The conversion is a significant step in Razorpay's preparation for an eventual IPO, expected in about two years.Razorpay has raised approximately $740 million from investors and was last valued at $7.5 billion.