In a major clean-up exercise, Bombay Stock Exchange (BSE) has proposed delisting more than 1,000 companies from its platform. This was because trading in their shares have remained suspended for more than seven years for various penal reasons.A proposal in this regard has been sent by Asia's oldest bourse, which today completed its 140 years of operations, to the capital markets regulator SEBI wherein BSE has stated that the shares of these companies can be suspended after giving their shareholders sufficient opportunity to exit.