Hi Shanu,
The fees for Allen Kota for the term of 1 year ranges from 78k-2lakh at maximum.
There are various fee waiver schemes as well. I am attaching their official page for your reference please go through it:-
https://www.allen.ac.in/2017-18/iit-jee-main-advanced-coaching/courses-for-jee-main-advanced-2017-18.asp
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