Once the JEE advanced results are out and if they are satisfactory does the student get to choose which city he can join IIT?How does the allocation system work?

My rank is 29k, General, should I opt for any state college cse branch or some Nits in which in which I am getting ECE , chemical, mechanics etc....

How is Ranquer Eduzone,comparing, Akash,Fitjee,Resonance,Naryana

Can class 9th students study syllabus classof 11th

Sum of series 2[n/2] ! [n/2]!/ n! [2Co-2C2+3C2....+[-1]^n[n+1]2Cn] where n is an even positive integer. Kindly provide solution of this question and how to generalise this. How do we know that which expansion will give this?

I m foreigner,How much mark i need to get into IIT??