Also, I came across STOs. How this is related to Tokenization?
Anyone please explain me, I am new to all these things.
There is some confusion between the terms "securitization" and "security."
STOs are security token offerings. They are blockchain tokens that represent securities -- in this case, equity securities that constitute equity ownership in the issuing company. Basically, they are issuing and selling company stock just like a company would in an IPO.
Securitization refers to something different. It's about pooling together different assets (like debts) and packaging them into tradable financial instruments. You can read about securitization here.