Analog Electronics - J B gupta(indian) / Sedra and Smith (foreign) Signal & System - A. Nagoor Kani or Ramesh Babu (indian) / Simon Haykin (foreign) Circuit Theory - A Chakraborti or Sudhakar (indian) Solid State - Streetman & Banerjee, Neaman or Bhattacharya & Sharma (anyone of this 3) Maths - Das Paul (no other book is needed) Numerical - Any book with lots of examples