Start your trip with a visit to the Lalbagh Botanical Garden, a 240 acre garden that is home to over 1000 species of plants and trees. Enjoy a peaceful stroll through the gardens and admire the historic glasshouse, which was modeled after London's Crystal Palace. Take a break and enjoy a cup of chai and some local delicacies at the garden's café.
Travel to the city of Mysore and visit the Mysore Palace, the former residence of the Wodeyar Maharaja's of Mysore. Admire the palace's stunning architecture and learn about its history through the on-site museum. Be sure to catch the Palace Illumination, a grand display of lights that takes place on Sundays and holidays.
Spend a day in the great outdoors as you visit the Bandipur National Park, one of India's premier wildlife reserves. Take a guided safari to spot tigers, elephants, and other native animals in their natural habitats. Enjoy a picnic lunch within the park and take in the beautiful scenery before heading back to your hotel.
On your final day, immerse yourself in the beauty of the Ooty Lake. Take a stroll around the tranquil lake and admire the surrounding lush landscape. Enjoy a boat ride on the lake or hike up to see the Dodabetta Peak, the highest peak in the Nilgiri Mountains. End your trip with a visit to local markets to pick up some souvenirs before heading back to Delhi.
If you have more time, consider visiting the nearby cities of Coimbatore or Coonoor. If you have less time, consider cutting out the Bandipur National Park visit and heading straight to Ooty. Be sure to bring sunscreen and comfortable walking shoes, and avoid visiting during monsoon season in July and August.