KUALA LUMPUR: Eco World Development Group Bhd’s wholly owned subsidiary, Hasrat Budi Sdn Bhd (HBSB) has filed in the High Court of Malaya a writ of summons and statement of claim against Revolusi Asia Sdn Bhd, Entomo Malaysia Sdn Bhd and Raveenderen A/L Ramamoothie, in relation to HBSB's investment in MYSJ Sdn Bhd.