Welcome to Delhi! After clearing immigration and customs, pick up your luggage and head to the arrivals hall. You can get a local SIM card and exchange currency here if needed.

Check into your hotel and freshen up. Choosing a hotel in a central area like Connaught Place or Karol Bagh provides excellent connectivity to most parts of the city via the Delhi Metro.

Grab a quick and authentic lunch near your hotel before heading out for sightseeing. This is a good time to try a simple North Indian thali to sample various dishes.

Take the Metro to Chandni Chowk station. Visit Jama Masjid, one of India's largest mosques, commissioned by Mughal emperor Shah Jahan. Its courtyard can hold 25,000 worshippers. Climb a minaret for a panoramic view of Old Delhi.

Hire a cycle rickshaw from outside Jama Masjid for an unforgettable ride through the narrow, chaotic lanes of Chandni Chowk. Ask the driver to take you through Khari Baoli, Asia's largest wholesale spice market. The sights, sounds, and smells are an incredible sensory experience.

Experience legendary Mughlai cuisine at Karim's, a historic restaurant near Jama Masjid, famous for its kebabs and mutton korma. Alternatively, explore the street food of Chandni Chowk, trying delicacies like parathas at Parathe Wali Gali or chaat.

Visit this UNESCO World Heritage site, a magnificent tomb of the Mughal Emperor Humayun. Built in the 16th century, its grand scale and garden setting were an inspiration for the Taj Mahal. The intricate red sandstone and white marble architecture is stunning in the morning light.

Take a taxi or auto-rickshaw through the heart of New Delhi. Drive past the Rashtrapati Bhavan (President's House), Parliament House, and other impressive government buildings. Stop at India Gate, the iconic war memorial arch, to pay respects and take photos.

Head to Connaught Place (CP), a bustling commercial and dining hub. Choose from a wide variety of restaurants. For a classic experience, try Saravana Bhavan for authentic South Indian cuisine or a North Indian restaurant for a hearty meal.

Experience the peace and selfless service at one of Delhi's most prominent Sikh temples. The complex is beautiful with its golden dome and large 'sarovar' (holy pool). Don't miss visiting the 'langar' (community kitchen), which serves free meals to thousands of people daily, regardless of faith or background.

Explore Janpath Market, located near Connaught Place. It's a vibrant street market famous for its budget-friendly clothing, accessories, handicrafts, and souvenirs. It's a great place to practice your bargaining skills.

Enjoy dinner at one of the many themed restaurants in Connaught Place. Options range from classic Indian fine dining to international chains and quirky cafes. Consider a place like 'Farzi Cafe' for a modern take on Indian food.

Begin your day at the Baha'i House of Worship, popularly known as the Lotus Temple due to its flower-like shape. It's an architectural marvel open to all, regardless of religion. The serene atmosphere inside is perfect for silent prayer and meditation.

Discover India's first open-air art gallery. The walls of the Lodhi Colony neighborhood have been transformed into a vibrant canvas by street artists from India and around the world. It's a fantastic place to walk around and take unique photos.

After your art walk, have lunch at one of the trendy cafes in Lodhi Colony or the nearby Meherchand Market. These places offer a mix of Indian and international cuisine in a chic setting.

Explore Hauz Khas Village, a unique blend of history and modernity. Walk through the Deer Park, see the historic fort ruins and the Firoz Shah Tughlaq's tomb overlooking a beautiful lake. The village itself is filled with quirky boutiques, art galleries, and cafes.

Enjoy dinner at one of the many rooftop cafes in Hauz Khas Village. These places offer stunning views of the lake and monuments, combined with a lively atmosphere, music, and diverse food menus.

If the weather is poor (heavy fog or rain), consider visiting the National Museum instead of the outdoor art districts. It houses a vast collection of artifacts covering 5,000 years of Indian history and art.

Visit the magnificent Qutub Minar, a 73-meter-tall minaret and another UNESCO World Heritage site. The complex is filled with ruins of ancient mosques and tombs, including the mysterious Iron Pillar of Delhi, which has resisted rust for over 1,600 years.

Head to Dilli Haat for a unique lunch experience. This open-air market features food stalls from various states across India. You can sample a wide range of regional cuisines, from Rajasthani dal baati churma to Hyderabadi biryani, all in one place.

After lunch, explore the craft stalls at Dilli Haat. Artisans from all over India come here to sell their products directly. You can find authentic handicrafts, textiles, pottery, and jewelry. It's an excellent place for souvenir shopping.

Spend the evening at Khan Market, one of Delhi's most upscale and popular markets. It's known for its excellent bookstores, designer boutiques, and charming cafes. It's a U-shaped market that's easy to navigate and has a relaxed, sophisticated vibe.

Khan Market offers some of Delhi's best dining experiences. Choose from a variety of cuisines, including authentic Italian, Pan-Asian, and modern Indian. 'The Big Chill Cakery' is a must-visit for dessert.

Visit this beautiful sandstone and marble mausoleum, often described as the 'last flicker in the lamp of Mughal architecture.' It's similar in style to Humayun's Tomb but on a smaller scale and is far less crowded, offering a peaceful and reflective experience.

Have a quintessential Delhi meal for your last lunch. Find a highly-rated local spot for Chole Bhature (spicy chickpea curry with fluffy fried bread). It's a delicious and filling dish beloved by locals.

If time permits, do some last-minute souvenir shopping. You could revisit Janpath for bargains or head to a state emporium on Baba Kharak Singh Marg for fixed-price, authentic handicrafts.

Head back to your hotel to pick up your luggage and proceed to Indira Gandhi International Airport (DEL) for your flight home.