Complex sentence: Both she and her father had a long-standing interest in Bengal, her home city had 1% native Bengali speakers, however, according to Uttara's family they have never traveled to Bengal and never had Bengali speaking friends and neighbors.
Split into simpler sentences: Both she and her father had a long-standing interest in Bengal, and her home city had 1% native Bengali speakers. However, according to Uttara's family they have never traveled to Bengal and never had Bengali-speaking friends and neighbors.