The key here is to match the exact wording quoted in the question to the case where the Supreme Court used that formulation to define misconduct.
Since the wording in the question is the actual test articulated in the first case, the correct answer is Noratanman Courasia v. M. R. Murali.
Another useful check is to notice that the question stresses misconduct is not restricted by technical interpretations of conduct rules, and to see which case makes that specific point about rejecting a narrow, technical reading.
Because only the first case makes the specific point that misconduct is not to be read down by technical rules, the correct answer is Noratanman Courasia v. M. R. Murali.