Do visit:
1. Hagia Sophia Museum
2. The blue Mosue
3. Grand Bazar
4. Basilica Cistern
5. Ortaköy Mosque
If time permits explore nearby cities;
1. Ankara
2. Cappadocia
3. Antalya
Transport: There is high speed train connectivity in turkey. Plan out well in advance
Hope it helps!
Hi Ayush, Attached below are packages offered for Istanbul by Tripoto for hassle free travelling. Please take a look, fill the form and someone will get in touch with you. Thanks!