The Prince of Wales and Duchess of Cornwall will visit India before the Commonwealth Heads of Government Meeting (CHOGM) in Sri Lanka in November.
The heir to the throne will tour India between 6 and 14 November as head of a UK-India trade delegation.
The Prince is representing the Queen at the biennial meeting in Sri Lanka.
Prince Charles and Camilla will attend the opening ceremony of the summit in Colombo and host a dinner for the leaders, with the prince making speeches at both events.
The trip to India will be the couple’s fourth official visit to the country and the first since the prince opened the Commonwealth Games in new Delhi in 2010.
The couple are set to meet Indian political and business leaders on their trip which will take in picturesque Dehradun, outside New Delhi, as well as Pune, Kochi and Mumbai where they will be hosted at a Bollywood-themed gala dinner.
The prince and the duchess will also attend a number of official engagements while in Sri Lanka, including a visit to a mental health initiative, a hospital and a tea estate.
This year’s CHOGM has been a contentious issue.
Last week Canadian Prime Minister Stephen Harper announced he would boycott the meeting over concerns about Sri Lanka’s human rights record.
Earlier this month, The Gambia announced its intention to withdraw from the Commonwealth, saying it would “never be a member of any neo-colonial institution”.
The Queen was first present at the CHOGM summit in Ottawa, Canada, in 1973 – missing the first one in 1971 – and has been at every summit since.
The last one, in 2011, was held in Perth, Australia.