Shortly before his arrival in New Delhi on Tuesday, newspapers and TV ran pieces on A Royal Duty, written by the late Diana's former butler and its revelations of her fears of a plot to kill her and details of her private life.
"A swelling tide of sleaze, revelation and allegation stares Prince Charles in the face as he is hounded by headline-grabbing controversy started by Paul Burrell, royal butler-turned-author," said The Times of India.
With an initial 95,000 copies on sale in Britain and 700,000 in the United States, the book's most sensational revelation is that Diana predicted her own death in a car crash just 10 months before she died in a Paris road tunnel in 1997.
It is also packed with personal letters and details about the famous infidelities of Diana and Prince Charles, heir to the British throne, before their break-up.
"All of this is a bit of a pity really," India's Hindustan Times said in an editorial headlined "The butler did it".
"The Prince of Wales' nine-day visit to India starting today seems to have taken on an unexpected colour with Princess Diana's ghost and Mr Burrell's ghouls making a noisy racket in the background," the paper said.
"A swelling tide of sleaze, revelation and allegation stares Prince Charles in the face"
The Times of India
Charles' tour, focusing on the environment, heritage restoration, bilateral ties and helping young business people, begins in Delhi, takes in the royal desert cities of Jaipur and Jodphur and ends in the film and financial capital Mumbai.
"As a great admirer of India's rich architectural treasures, not to mention her religious and cultural traditions, I am very keen to highlight the important restoration and conservation work being carried out to protect this unique heritage," he said in a statement.
In Mumbai, Prince Charles will visit the set of the film, The Rising, starring Bollywood's reigning queen and former Miss World, Aishwarya Rai.
The movie, which also stars Toby Stephens, is based on an uprising in 1857 known as either the Indian Mutiny or the first war of independence. That led to Britain seizing control of most of the country from the British East India Company.