A lump-sum investment means you invest an entire amount of money in a mutual fund at one time, rather than splitting it into smaller portions over multiple months or years. For example, if you invest ₹1,20,000 in a mutual fund at once, you have made a lump-sum investment. If you invest the same ₹1,20,000 in instalments (such as ₹10,000 every month for 12 months), you create a Systematic Investment Plan (SIP).
You typically make lump-sum investments when you have money available to invest immediately, such as a bonus, inheritance, or accumulated savings. You can make such lump-sum investments on Coin. You can visit the Introduction to mutual funds module on Varsity to learn more.