About the author

GreeksGyan is written and maintained by Bulan Sarkar, an options educator who built this resource to fix a specific gap: clear, rigorous, India-specific teaching on the Option Greeks. The goal is not to predict markets but to help traders understand the risk they are carrying.

Editorial approach

Every explainer is drafted from first principles, checked against the Black-Scholes framework, and grounded in realistic Nifty and Bank Nifty examples. Where a claim is a rule of thumb (for example, Delta as a probability proxy), it is labelled as such. Corrections are welcome — see Contact.

How to reach out

For corrections, questions or feedback, use the contact page. Read our Editorial Policy and Methodology for how content is produced and reviewed.

Last updated 7 July 2026.