Step 1: Event identity.
The Sino-Indian War occurred in 1962, with fighting mainly in Aksai Chin and NEFA (now Arunachal Pradesh).
Step 2: Distinguish from other war years.
1965 and 1971 were India–Pakistan wars; 1948 relates to early J& K hostilities.
Step 3: Conclude.
\[
\boxed{\text{1962 (Option B).}}
\]