Olectra Greentech Chairman and Managing Director KV Pradeep resigned citing 'personal reasons'.The company faced order cancellations from Maharashtra and Telangana governments, resulting in a revenue loss of approximately Rs 9,070 crore.Maharashtra government reinstated a Rs 9,000 crore contract for 5,150 e-buses with a revised delivery schedule proposed by Olectra Greentech.Olectra Greentech stock was trading 0.6% higher at Rs 1,229 apiece, witnessing a decline of 30% in the last 12 months.