If you're a Bajaj Finance shareholder with just 10 shares in your Demat account, you're in for a surprise. The company has rolled out two major corporate actions, a bonus issue and a stock split, that will significantly increase the number of shares you own, without you spending a single rupee.By the end of June, those 10 shares could soon become 100. Here’s how it all unfolds and what it means for you.Two big moves from Bajaj FinanceBajaj Finance has approved two shareholder-friendly corporate actions:A bonus issue in the ratio 4:1, meaning you’ll get 4 additional shares for every 1 share you own.A stock split in the ratio 1:2, which splits each existing share of Rs 2 into two shares of Rs 1 each.To be eligible, you must hold shares in your Demat account by the close of market on Frid