Hey Aashish, You can choose any option from these for 3D/2N trip from Mumbai : 1)Gokarna 2)Goa 3)Pune 4)Ahmedabad 5)Mahableshwar 6)Alibaug Hope this would help you.
Try out Ratnagiri if you want peace else go Goa. Check my trip. Let me know if you require more info. Or tell me what kine of place you would like to go.
If u r visiting Mumbai for first time. Then these places should be on ur list
Gateway of India. Elephanta caves Nariman Point Worli sea link ISKCON temple
Here are a few suggestions: Lonavala and Khandala - These are hill stations located just a few hours from Mumbai. You can enjoy scenic views, visit waterfalls, and take leisurely walks. Mahabaleshwar - It's a popular hill station with pleasant weather and plenty of things to see and do, including visiting waterfalls, temples, and viewpoints. Alibaug - A coastal town located just a few hours from Mumbai, it's famous for its beaches and forts. You can also go for a boat ride or visit nearby Kolaba Fort. Nashik - Nashik is famous for its vineyards and wineries, so you can take a tour and sample some local wines. You can also visit the famous Trimbakeshwar Temple. Matheran - A hill station located close to Mumbai, it's known for its lush greenery, hiking trails, and stunning viewpoints. These are just a few options, but there are many other places to consider as well. When planning your trip, make sure to keep in mind the needs of your 2-year-old daughter and choose activities and places that would be suitable for her as well.