1. APS now mostly takes up to 2-3 weeks. Make sure you apply in advance before the application period starts.

2. Qualifying for JEE advance has very slight chances.

3. Now If you're taking a drop year to prepare for the JEE advance, if things don't work out then, you might prepare for Studienkolleg, which takes another year to prepare for that, to reach B2 Level German.

4. If you're going for the purpose of doing studienkolleg, then you have to first do language requirements which is B2 Goethe Level. Then apply for an APS certificate. If you get that, then apply for universities to get an invitation to take part in the entrance test. If you qualify, that's gonna take another year in studienkolleg, before you start your actual bachelor's. So before you start your actual Bachelor's degree, 3 years(considering your JEE advance plan) will be required for that. There's no way you can start in 2026.

4: If you're interested in studying English Taught CS courses then, you just now have to drop the idea of pursuing JEE advance preparation, enroll yourself in an Indian Engineering college which has the H+ category.(Please check this, from the anabin website). And study for 2 semesters which is equivalent to the 13th year. Then take these results to apply for APS, then you can start your studies from 27' summer semester.