London: An India-born IT professional in Britain stabbed his wife and two daughters to death after researching how to cut someone's throat - then lived with their bodies for a weekend before hanging himself, an inquest has heard.

Jitendra Lad, 49, his wife Dukshaben Lad, 44, and their daughters Trisha, 19, and Nisha, 16, were discovered at their home in Clayton, Bradford, last October days after celebrating Diwali, the Daily Mail reported on Wednesday.