In the Kenyan cricket team, Hiren Varaiya bowls slow left arm orthodox and bats right handedly. He has also played for Africa XI.
Hiren Varaiya played his debut One day International on 5th August 2006 at Toronto (Toronto Cricket, Skating and Curling Club) against Canada. He was the No. 11 batsman and did not get a chance to bat. He took 3 wickets in the 9 overs he bowled and gave away 24 runs. Kenya won this match by 108 runs. Varaiya debuted in Twenty20 International cricket on 1st September 2007 against Bangladesh at Nairobi (Gymkhana Club Ground). In this match also, he did not get an opportunity to bat and bowled 2 overs, none of which were maidens and conceded 15 runs without taking any wicket. Bangladesh won this match by 5 wickets with 14 deliveries remaining.
Hiren Varaiya appeared in 30 One day Internationals in which he bowled 1330 balls and took 39 wickets while conceding 842 runs. His bowling strike rate was 34.1, economy rate was 3.79 and bowling average was 21.58. In Twenty20 Internationals, he played in 6 matches and bowled 102 deliveries. He dismissed 4 batsmen and conceded 94 runs. His bowling strike rate was 25.5, bowling average was 23.50 and economy rate was 5.52.