In the morning, explore the history of the Maratha Empire at the Shaniwar Wada Fort, known for its gardens, fountains and the remains of the old fort.
For lunch, try the local delicacies at the nearby Durvankur Dining Hall, which serves authentic Maharashtrian cuisine.
In the afternoon, head to the Raja Dinkar Kelkar Museum, which houses a collection of over 20,000 artefacts, including musical instruments, paintings, and sculptures.
In the evening, take a stroll at the nearby Dagdusheth Halwai Ganpati Temple, one of the most famous temples in Pune and enjoy local street food at the nearby food stalls.
In the morning, visit the Aga Khan Palace, which played a significant role in India's freedom struggle and is now a museum that showcases the life and work of Mahatma Gandhi.
For lunch, head to the nearby German Bakery, which offers a variety of tasty bakery items and beverages.
In the afternoon, explore the lush greenery and beautiful flowers at the Pune-Okayama Friendship Garden, which has a Japanese-style garden and a small lake.
In the evening, enjoy some live music and delicious food at the Hard Rock Cafe, located in the nearby Koregaon Park area.
If you have extra time, you can visit the Sinhagad Fort, which is a popular trekking spot and provides a panoramic view of the city. Other notable attractions include the Pataleshwar Cave Temple, the National War Museum, and the Osho Ashram.
You might consider a side trip to the hill station of Lonavala, which is about 67 km from Pune and is famous for its natural beauty, waterfalls, and caves.
For maximizing your fun, try some adventure activities like trekking, paragliding, and rafting, which are available in and around Pune. You can also indulge in some shopping at the local bazaars and malls, such as FC Road, Phoenix Market City, and Amanora Mall.
Lastly, don't forget to try some of the famous street foods of Pune, such as Vada Pav, Bhel Puri, and Misal Pav, which are available at various food stalls and restaurants across the city.