The buyback window of Kaveri Seed Company will open for subscription on Monday. It plans to buy back over 29.62 lakh shares at ₹675 a share. It will spend ₹200 crore in buying back about 4.29 per cent of the total paid-up capital of the company. The promoters and promoter group companies have also expressed their interest in participating in the buyback offer, which will be on proportionate basis through the tender offer route. The offer ends on July 21.