Tuhin Mukherjee and Mandal, S. 2026. Informational Content Of India Vix: Evidence From Volatility Envelopes, Causality, And Conditional Volatility Of Nifty Monthly Returns  During 2015-2025. International Journal of Innovations in Science, Engineering And Management. 5, 2 (Apr. 2026), 100–111. DOI:https://doi.org/10.69968/ijisem.2026v5i2100-111.