Adani Ports and Special Economic Zone Limited on Tuesday raised Rs 500 crore by issuing non-convertible debentures on a private placement basis. India's largest port operator has allocated 50,000 rated, collateralized, listed and redeemable NCDs of face value of Rs 100,000 crore. The company has accepted bids totaling Rs 5,000 crore for two listed bonds, one with a maturity of five years and the other with a maturity of 10 years, according to an exchange filing. of…