Complex sentence: Kotal signed for Pailan Arrows in the I-League for the 2011-12 I-League season in the summer of 2011, making his debut in Pailan's second victory of the season in a Round 23 match against HAL.
Split into simpler sentences: Kotal signed for Pailan Arrows in the I-League for the 2011-12 I-League season in the summer of 2011. He then played in Pailan's second victory of the season in a Round 23 match against HAL.