Scrum Master Certification without attending classes

Hi Everyone, I want to get certified as a Scrum Master. I need a certification from a recognised Scrum institute. The Scrum Master certification should have good merits in the market. My problem is I don't have enough time to attend classes or enrol in a workshop. At best, I can learn the topics on my own and later appear for a certification which is recognised in the market. Can anyone suggest from where I can get such a certification? Please advice. Many thanks.

Posted By - Chaitali