Step 1: Read the facts.
A Magistrate of the Second Class gives a sentence of one month's imprisonment. The accused wants to appeal. We must find what the CrPC, 1973, allows.
Step 2: Know why some appeals are blocked.
To stop the higher courts from being flooded with very small matters, the law says that for very minor sentences, no appeal is allowed.
Step 3: Apply the rule on petty sentences.
Section 376 of the CrPC lists petty sentences where no appeal lies. When a Second Class Magistrate gives imprisonment of not more than one month only, it is treated as a petty sentence.
Step 4: Apply it to our facts.
Here the sentence is exactly one month from a Second Class Magistrate, with no extra fine mentioned that would change this. So it falls in the no-appeal category.
Step 5: Reject the other options.
Appeal to the High Court is wrong. Appeal to the Court of Session is wrong because the petty sentence bar applies. The idea that appeal lies only if a fine was added is not the rule here.
Step 6: State the answer.
For this minor one-month sentence, no appeal is maintainable.
\[ \boxed{\text{No appeal is maintainable in this specific instance.}} \]