TCS is a very interesting subject and the most scoring in your IV sem.
But it cannot be learnt without the help of a good teacher.
With just attending my lectures, following my notes and doing my homework regularly, I shall guarantee you will score a min 80/100!
DFA, NFA, Regular Expressions, Grammars, PDA, Turing Machine, Undecidability
(As per your syllabus)
I have been teaching computer engineering for more than eight years. I have a good expertise on most of the subjects. I specialize in TCS (Theory of Computer Science), AT (Automata Theory), DSGT (Discrete Structures & Graph Theory), Data Structures, AOA (Analysis of Algorithms), and many more.