ONGC Petro Additions Limited, a subsidiary of India's ONGC, is planning to raise funds through a bond sale, with its parent company potentially providing a guarantee. The company is also involved in various other activities, including a plan to raise up to Rs 4,471 crore through non-convertible debentures and participation in joint ventures related to petrochemical marketing and ethane shipping. Additionally, ONGC has formed partnerships with other companies, such as MRPL and MOL, to expand its operations in these areas.