Recent Price Revision in F&O When is Extreme Loss Margin(ELM) applicable?

What is the revised lot size for Indices? When will the new lot sizes for weekly contracts be effective? When will the new lot sizes for monthly contracts be effective? What happens to existing contracts during the transition? Can different lot sizes co-exist in the same month? When will the new lot sizes come into effect? Why is the lot size of 30th January 2025 contract shows 25, while the February 2025 contract has a lot size of 75? How do the new lot sizes impact margin requirements? What other changes has SEBI introduced in the F&O segment? What is the rationale behind the changes in Futures and Options new rules? What are the new lot sizes for index derivatives? What are the implementation dates for the effective changes? What is revised expiry schedule for NSE contracts? What is revised expiry schedule for BSE contracts?

Removal of Calendar Spread Margin Benefits on Expiry Days What is the removal of calendar spread? What is a calendar spread? How does the removal of margin benefit work on the day of expiry? Which contracts are affected due to removal of calendar spread? What will happen to my calendar spread on expiry day? Will this rule apply to Options Calendar Spread as well? How can traders manage this change? Where can I see my total margins for my positions one day before the expiry? If I am unable to bring the margin how my position will be impacted?