NIFTY opened like a 300 point gap down two weeks back. Here is how you could have made (or lost) 15k with just 50 k capital in 10 minutes!
Here is Balajee Ramachandran, our front end engineer and an Options Trading enthusiast, with his real life Options Trading Experience
The moral of this story is that you should always check IVs before you trade. And you can check that quite easily with Option Chain by Sensibull