Ather Energy will debut on Indian stock exchanges on Tuesday, May 6, with a soft grey market premium hinting at a subdued start for the electric two-wheeler maker’s shares. As of Monday, May 5, the grey market premium stood at Rs 7, implying a marginal 2.18% upside over the IPO’s upper price band of Rs 321. Allotments were finalised on Friday, with shares credited to investor accounts and refunds issued on Monday.