ISLAMABAD - Indian former minister for external affairs, Jaswant Singh on Wednesday said that Indus Water Treaty between India and Pakistan was the best document to address the water dispute between the two nuclear neighbours. In his brief interactive session with the media and audience of the ceremony of launching of his book 'Jinnah: India-Partition-Independence here at Islamabad Club, he said that Kashmir issue could be resolved only through negotiations between the two countries. Jaswant Singh dismissed the notion when a questioner asked him about potential reaction back in his home over his current visit to Pakistan to launch his book, saying, I am least bothered about such things. After becoming victim of severe criticism launched by his political party BJP for writing a controversial book relating to 1947 partition, he said he would continue his efforts to avert further traumatic situations in the subcontinent. 1947 partition is fact and India cannot reverse it. I had questioned the partition just to prevent future traumatic incidents between the two countries, Jaswant Singh said. He was of the view that if people of the subcontinent did not learn their common history, they would become the victims of revenge of geography.