Electric scooter maker Ola Electric’s initial public offering will open for retail subscription on Friday, the company said in a filing with the stock market regulator on Saturday.The Bhavish Aggarwal-led electric vehicle firm is expected to raise Rs 5,500 crore in fresh capital via the IPO, apart from the offer-for-sale (OFS) component.Ola Electric was initially aiming for a $6-7 billion valuation but has since tempered its expectations. According to its draft red herring prospectus filed in December, the company is facilitating an OFS of 95.2 million shares.