Complex sentence: On 14 April 1923 he was transferred from the jail in Alipore to Hooghly in Kolkata, he began a 40-day fast to protest mistreatment by the British jail superintendent.
Split into simpler sentences: On 14 April 1923 he was transferred from the jail in Alipore to Hooghly in Kolkata. He began a 40-day fast to protest mistreatment by the British jail superintendent.