Complex sentence: Mumemi was the President of Patna District Congress Committee (1940-41) while he was president he gifted the plot of land, about 8-10 katthas, to Bihar provincial Congress Committee which is near at Congress Maidan, KadamKuan.
Split into simpler sentences: Mumemi was the President of Patna District Congress Committee (1940-41). While he was president, he gifted the plot of land, about 8-10 katthas, to Bihar provincial Congress Committee which is near at Congress Maidan, KadamKuan.