The ₹167-crore IPO of Gala Precision Engineering is open for subscription from September 2 to September 4 at price band of ₹503-529 per share. Investors can bid for a minimum of 28 shares, requiring investment of ₹14,084. Ahead of listing, unlisted shares of the precision products manufacturer were reportedly trading ₹240 higher than the IPO price in the grey market.