JEE Advanced

Hello Narshima,
According to your marks, you will surely get a good branch in any IITs. However, check here to get more insights:
https://www.shiksha.com/b-tech/resources/jee-advanced-rank-predictor

Please check the college closing rank by JoSAA for IITs and NITs and compare with your rank:
http://josaa.nic.in/Result2016/result/OpeningClosingRank.aspx

You can check the college closing rank of NITs and IITs by JoSAA in the link provided below:
http://josaa.nic.in/Result2016/result/OpeningClosingRank.aspx
All the best.

Yes, this year's cut-off will be almost similar to the last year's cut-off. So you may get a good IIT in the spot round but you will get one for sure. Spot round may do the trick. So, wait till the spot round. A friend of mine got around 138 marks and he is currently in IIT-DHANBAD (mining machinery

Hello Vivek,
You can use the rank predictors to know your rank.
College & Branch predictor :
https://www.resonance.ac.in/reso/news/JEE-Main-Branch-Predictor.aspx
Rank predictor:
https://www.resonance.ac.in/answer-key-solutions/JEE-Main/2017/jee-main-2017-rank-predictor.php
These are just predictions so

First of all, I want to congratulate them.
266 is a very good score in JEE. I think she will get a rank under 500. And with this rank, she will get top 5 IITs. And your son will get a rank under 4500. With this rank, he will get new IITs very easily.

Hello Preetha,
There is no particular exam for a course in JEE Main and Advanced. The questions are from physics, chemistry and mathematics. So, if you want to get aeronautical or aerospace engineering in IITs or NITs you need to clear JEE Main or Advanced or both by answering questions from physics,

Firstly, it may be a computerised mistake. If not, then it shows that you may get bonus marks for that question but only if you have attempted it.

You can use the book A.D.Gupta. It is the most valued book to practice any topic on mathematics. I would sincerely suggest you to practice according to that book.