Trualt Bioenergy IPO opens for subscription on September 25 and closes on September 29. The company will be raising Rs 839.28 crore by going public. The issue is a combination of 1.51 crore fresh shares aggregating to Rs 750 crore and an offer for sale of 0.18 crore shares, summing to Rs 89.28 crore. The company has set the bidding price between Rs 472 and Rs 496 per equity share.