Bombay Stock Exchange (BSE) to develop a solution that would allow NSE/BSE brokers to trade on multiple exchanges. This would enable simultaneous trading in NSE and BSE-listed companies, said persons familiar with the development. BSE has given the green signal to create the solution that would enable a broker using NSE’s front-end software called NOW, to enable trade on NSE cash/derivative/currency and also on BSE’s cash as well as on NCDEX.