Narendra Modi, who is now expected to become India's next Prime Minister, has tweeted in celebration at the results, declaring "India has won".
Mr Modi's BJP party looks set to register a convincing victory over the ruling Congress Party, who have now conceded defeat.
More top news
The Duke and Duchess of Cambridge met young people who have battled mental health issues on Saturday.
Former Chancellor Lord Geoffrey Howe was Margaret Thatcher's longest-serving Cabinet minister, also taking on the role of Foreign Secretary.
Lord Geoffrey Howe is known by many for his resignation speech which was seen as the catalyst which destroyed Margaret Thatcher.