[A] Gullappalli Nageswara Rao Vs. State of AP, is about bias
[B] K.L. Tripathi Vs. State Bank of India, is about right of cross examination
[C] General Medical Council Vs. Spaekmen, is about irrelevance of principles of natural justice; if in reaching a decision, the principles make no difference
[D] N. Kalindi Vs. Tata Locomotives, is about the right of representation by a lawyer being considered to be a part of natural justice and it can be claimed as of right.