If by chance there are seats vacant after the third round of counselling in IIT JEE 2011, how are those seats filled? Do the colleges put the details on the website or are students called?

Are core branches(Mechanical) in Top 3 NIT worth it ?

My rank in JEE Advanced 2022 is 1871. Should I go for IIT Guwahati ECE or IIT Kanpur Mechanical and try for a branch change to CS or Electrical Engineering? Is changing your branch very difficult?

Can i sacrifice board exams for jee mains as board exams are no where valueable as cuet and other will be seen for admission 

 

Is a student studying in IGCSE syllabus eligible for taking IOQP or IOQJS?

I have wasted my 11th? Is it still possible to get into my dream iit? Do i have to cover 11 th syllabus first? When and how can i finish it?