Step 1: Identifying the 51st Chief Justice.
Justice Uday Umesh Lalit was appointed as the 51st Chief Justice of India.
Step 2: Analyzing the options.
- (A) Justice Ranjan Gogoi: Ranjan Gogoi served as the 46th Chief Justice of India.
- (B) Justice Uday Umesh Lalit: This is the correct answer. He became the 51st Chief Justice of India.
- (C) Justice D.Y. Chandrachud: Justice D.Y. Chandrachud is the current Chief Justice of India but is not the 51st.
- (D) Justice Sanjiv Khanna: Justice Sanjiv Khanna is a judge but has not served as Chief Justice.
Step 3: Conclusion.
The correct answer is (B) Justice Uday Umesh Lalit, who became the 51st Chief Justice of India.