Concept:
Under Article 168 of the Constitution of India, a state legislature can be either unicameral (comprising a single chamber: the Legislative Assembly or Vidhan Sabha) or bicameral (comprising two chambers: the Legislative Assembly and the Legislative Council or Vidhan Parishad).
Step 1: Identifying the current bicameral states in India.
As per current constitutional arrangements, only six states out of twenty-eight have a functioning bicameral system. These six states are:
1. Andhra Pradesh
2. Bihar
3. Karnataka
4. Maharashtra
5. Telangana
6. Uttar Pradesh
In these six states, the legislature consists of both the Legislative Assembly (Lower House) and the Legislative Council (Upper House).
Step 2: Evaluating the given states.
Let us cross-reference the options against our verified list of bicameral states:
• (A) Bihar: Possesses a bicameral legislature (has a Vidhan Parishad).
• (B) Karnataka: Possesses a bicameral legislature (has a Vidhan Parishad).
• (C) Rajasthan: Possesses a unicameral legislature consisting only of the Vidhan Sabha (Legislative Assembly). It does not have a Legislative Council.
• (D) Maharashtra: Possesses a bicameral legislature (has a Vidhan Parishad).
Consequently, Rajasthan is the state among the options that does not feature a bicameral structure.