Photo: Bang ShowbizNaomi Campbell is planning a huge Indian bash next month for her billionaire boyfriend Vladislav Doronin's 50th birthday.The 42-year-old model - who was blamed by her Russian boyfriend's ex-wife for their divorce earlier this year despite being separated for ten years - is throwing a lavish four-day celebration for her beau that will kick off in Rajasthan on November 4 with guests flying in from around the world.A source told the New York Post's Page Six: "Naomi is flying a lot of people out to India and paying for everything."The supermodel has reportedly emailed guests invitations that include an image of her boyfriend posing underwater with a Seabob, a hand-held propulsion device - in a James Bond style photo-shoot.The British style icon has reportedly booked out an entire five-star hotel for the main celebrations but has planned a number of other events that will take place in other parts the scenic city of Jaipur.She is also said to be working with Paris-based travel expert Omar Cherif, who owns OC Travel, to organize the luxury celebration.Another source said: "No expense has been spared. Naomi's team is even helping their friends secure visas. It will be the party of the century."The couple - who have been dating since 2008 - celebrated the model's 40th birthday together with a huge party in the south of France two years ago.Guests including the Black Eyed Peas, Grace Jones, Donatella Versace, Kate Moss, Giorgio Armani and Jennifer Lopez helped her celebrate the milestone.