Option 1: K M Nanavati vs. State of Bombay: This case is not related to the issue of `creamy layer` among the backward classes. It involves a criminal trial concerning the murder of Nanavati`s wife`s lover.

Option 2: Indra Sawhney vs. Union of India: This is the correct answer. This case, also known as the Mandal case, dealt with the issue of reservation for backward classes in government jobs. The concept of `creamy layer`, which refers to a section of the backward class that is economically advanced and does not require affirmative action, was discussed in this case.

Option 3: Madhu Limaye vs. Ved Murti: This case is not related to the issue of `creamy layer` among the backward classes. It involves a defamation suit filed by Madhu Limaye against Ved Murti, a politician.

Option 4: Sajjan Singh vs. State of Punjab: This case is not related to the issue of `creamy layer` among the backward classes. It involves a challenge to the validity of the Punjab Alienation of Land Act, 1900.

In conclusion, the correct answer is option 2, Indra Sawhney vs. Union of