Step 1: Identifying the Error.
The sentence "Ram Pal is junior than me" contains an incorrect use of the comparative adjective "junior." In English, when comparing people using the adjective "junior," we should use "to" instead of "than."
Step 2: Correcting the Sentence.
The corrected sentence should read:
Ram Pal is junior to me.
Final Answer: \[ \boxed{\text{Ram Pal is junior to me.}} \]