ODI rules milestone (Jaipur, 02-10-1983): New regulation introduced in India–Pakistan match. In the India vs Pakistan ODI at Jaipur on 02-10-1983, which new on-field restriction was introduced for the first time in India? Choose the correct innovation.

Topic: Evolution of ODI playing conditions

Given data

• Identify the new rule first used in the India–Pakistan ODI at Jaipur on 02-10-1983.

Concept/Approach
The 30-yard fielding circle (restricting the number of fielders outside during specified overs) was formally marked and applied as a restriction in India around this time; the Jaipur ODI is noted for its introduction.

Reasoning
Other choices do not match the era: colored kits/white balls/third umpire/free hits came much later.

Common pitfalls

• Selecting later-era innovations (e.g., white ball or free-hit) that were not part of early-1980s ODIs in India.

Final Answer
Introduction of the 30-yard fielding circle restriction