In India's southern state of Kerala, 70-year-old TO Dominic starts most of his days with a phone call to one of his sons. One of them lives in the neighbouring Karnataka, the other in the Middle East. Both left home some years ago in search of better employment opportunities, leaving him and his wife MJ Martha to manage on their own. The calls are comforting, revolving around familiar topics such as health and the weather. But when the couple need help at home, it is not their sons who can