Hey there!

Yes, you can take drop for two years to prepare for jee. It's not something that's done very often but you can opt for that scenario as well. Generally students take a single drop year because that's a good amount of time for preparation. If you think one year isn't enough for you by all means opt for 2 drop years.

Hello,

So yes it is possible for you to take a 2 year gap but remember that even after two years you have to qualify JEE Mains then only you can appear for JEE Advanced. As you have mentioned that if you score 75 percentile then if you are from general category then obviously you do not qualify for JEE Advance 2020. In my opinion it is better to take 1 year gap rather than 2 because that would be too long but then again if you are determined enough then go for it.

Hope it helps.

Good luck.