1. Colours of Ball:
Test match — Red
One day match — White.
Red Colour Ball: Red colour ball retains its colour till completion of 80 overs and the batsman can easily pick this ball in test matches.
White Colour Ball: White colour ball is more visible in flood light than red colour ball.
2. Follow on: When a team bats first and leads by at least 200 runs in 5 days’ match. 150 runs in 3 day match. 100 runs in 2 day match. In a one day match with two innings per side, 75 runs.
3.
1. Obstructing the field — Out
2. Hitting the ball twice — Out.