Biodiesel production: Karnataka State Bioenergy Development Board chairman S E Sudheendra met Union Minister Nityanand Rai in New Delhi to urge strict rules against reusing degraded oil for public health. New Delhi: Karnataka State Bioenergy Development Board (KSBDB) chairman S E Sudheendra on Wednesday urged the Centre to formulate a comprehensive national policy to curb the unauthorised reuse of used cooking oil and channel it into biodiesel production.