Electric scooter maker Ather Energy has set a price band of ₹304-321 per share for its IPO. The issue, which will open for subscription on April 28, comprises a fresh issue worth ₹2,626 crore and an offer for sale (OFS) of 1.1 crore shares. At the upper end of the band, the OFS would be worth about ₹354.76 crore.