Maize prices remained unchanged in Purnea, Bihar, with good quality grain sold at 1,220-1,225 rupees per 100 kg and low quality at 1,100-1,120 rupees per 100 kg. With improving weather conditions, supply of good quality maize is increasing. On NCDEX, most active June maize contract ended almost flat at 1,301 rupees per 100 kg.