Start your first day in Delhi with a visit to the iconic Rashtrapati Bhavan, the official residence of the President of India. The 340-room palace boasts Mughal Gardens which become the highlight of the residence. Take the guided tour of the palace for a richer experience. After lunch, continue to India Gate - an impressive war memorial and tourist attraction which pays homage to the Indian soldiers who died in World War I.
On your second day, visit two UNESCO World Heritage sites: Qutub Minar and Humayun's Tomb. Qutub Minar, the world's tallest brick minaret, is a must-visit tower of Indo-Islamic architecture. The complex also includes a mosque and the Iron Pillar of Delhi. Later, visit Humayun's Tomb, the first garden-tomb on the Indian subcontinent which inspired the design of the Taj Mahal. End the day with a visit to the spiritual ISKCON Temple.
Begin the day at the stunning Lotus Temple, a Bahá'í House of Worship shaped like a lotus flower. The temple, which is open to people of all faiths, is surrounded by nine tranquil pools and gardens. After that, head to the magnificent Akshardham Temple, one of the largest Hindu temples in the world. The temple complex boasts an impressive exhibition called "Sahajanand Darshan", a cultural boat ride, and a mesmerizing musical fountain show.
End your trip with a visit to two of Delhi's most historic landmarks: Red Fort and Jama Masjid. The sprawling Red Fort was the main residence of the Mughal emperors for almost 200 years and today is a UNESCO World Heritage site. Take a guided tour of the fort's palaces, museums, and galleries to discover its rich history. Jama Masjid, a mosque and the largest in India, is located opposite the Red Fort. The mosque can accommodate up to 25,000 worshippers at once and has three impressive gateways.
With more time, explore the vibrant markets like Chandni Chowk and Khan Market to experience the local lifestyle, culture, street foods, and shopping. If you have less time than 4 days, skip some attractions and customize the itinerary according to your preference. Among hundreds of historical attractions, these are some most visited landmarks which meet the 'luxury' requirement and are open for tourists. Keep in mind that Delhi's weather is very extreme, get prepared with for any weather and carry sufficient water and sunscreen. Hire a driver or tour guide for a hassle-free trip and avoid crowded peak hours for a better experience.