Start with an honest subject audit
Before you open a single book, write down every pending paper, the exact syllabus units, and the marks distribution from the last two question papers. Most students underestimate backlogs because they think in subjects instead of units. A B.Tech paper is usually five units, and in practice three of them carry the majority of the marks.
Rank each pending unit as strong, shaky or blank. This single page becomes your revision map for the next eight weeks and stops you from re-reading comfortable chapters while the difficult ones stay untouched.
Build an 8-week schedule around your current semester
Give your running semester the daytime and your backlogs the fixed evening hour. Two focused hours on five days beats a heroic ten-hour Sunday that you abandon by week three. Reserve the last ten days purely for previous-year papers.
If a subject has defeated you twice, that is a signal to bring in a tutor rather than repeat the same self-study approach. A tutor who has taught your university's paper pattern can compress weeks of confusion into a handful of sessions.
Practise like the exam, not like a reader
Solve full papers with a timer and no notes. Marking your own paper strictly is uncomfortable but it exposes presentation mistakes, missing derivation steps and unit errors that quietly cost passing marks.
In the final week, write short answers from memory for every high-weight unit. Recall, not recognition, is what the exam hall demands.