In multi-lane highways operating under keep-left traffic rules (as in India), from which side is overtaking generally permitted under normal conditions?

Introduction / Context:
Overtaking rules maintain order and reduce conflicts on multilane facilities. In left-hand traffic jurisdictions, the overtaking lane is to the right, mirroring right-hand traffic systems where overtaking is on the left.

Given Data / Assumptions:

• Normal driving in India on multi-lane roads.
• No special restrictions such as construction zones or lane controls that modify behavior.

Concept / Approach:
Keep-left operation pushes slower vehicles to the leftmost lanes, reserving the immediate right lane(s) for overtaking maneuvers to minimize weaving and dangerous side conflicts.

Step-by-Step Solution:

Verification / Alternative check:
Traffic codes and driver handbooks specify passing on the right in left-hand traffic countries.

Why Other Options Are Wrong:
Passing on the left is generally prohibited except in special circumstances; passing from both sides increases conflict; banning overtaking entirely is impractical.

Common Pitfalls:
Overtaking on the left near intersections; lingering in the rightmost lane after passing.

Final Answer:
From the right side