The statement that is NOT true about oral testimonies on the Partition of India is:

(2) They throw light on the negotiations between the British and the major political parties.

Oral testimonies on the Partition of India are primarily focused on capturing the personal experiences, emotions, and stories of ordinary people who lived through the partition. While they provide valuable insights into the human aspects of this historical event and help understand the trials and tribulations of ordinary people, they do not typically provide detailed information about the negotiations between the British and major political parties. Such negotiations would be better documented in official records, historical accounts, and government documents.

So,the correct option is [2].