original_query: What were the main reasons for the dissatisfaction of Tamil politicians with Bandaranaike's administration?
query: What were the main reasons for the dissatisfaction of Tamil politicians with Bandaranaike's administration?
answer: Tamil politicians were dissatisfied with Bandaranaike's administration primarily due to the Sinhala Only Act, which made Sinhala the sole official language, and the subsequent abrogation of the Bandaranaike-Chelvanayakam Pact, which had promised regional councils and other concessions to the Tamil community.  Further dissatisfaction stemmed from the government's failure to address demands for federalism and Tamil language parity.