London: An Indian couple, both over 100 years old and said to be the world's oldest partners, has celebrated their joint birthdays this week in the UK. The couple who tied the knot almost 89 years ago on December 11, 1925 after meeting in India as teenagers celebrated their birthdays on Sunday, the Metro newspaper reported. They married the same year Margaret Thatcher was born and Stanley Baldwin was British prime minister, the report said. Karam Chand reached 109 on the same day his wife turned 102. They marked the occasion with four generations of their family at their home in Bradford. Karam, a retired mill worker, smokes one cigarette a day before his evening meal and drinks a tot of whisky or brandy three or four times a week.