This beautiful white marble and red sandstone Mosque is a beautiful quiet space in the storm that is Old Delhi. The beautiful interior with its colonnades and chandelier are exquisite. Carry a pair of thick socks with you otherwise you will have to buy slippers as the marble floors get very hot in the heat of summer. Be warned they are not supposed to charge you for gowns ( ladies) and sarongs( for men wearing shorts) but they do try and it will depend on your guide. If you want to take photos you will need to pay a camera charge so only take one in if you are in a group otherwise entrance is free.

Felt like being scammed forcefully by official staff: Me and my mum both had proper clothing covering from top to bottom without revealing any skin. We even had scarf to cover hair. But staff "forced" us and all foreign female tourists to pay extra for their "robes"  in order to enter.  (and funny enough, it is not required to cover hair! just wear the ugly and expensive robe)!   Despite my attempt to argue with them about the fact that it is not written as a rule at the entry nor can they provide a receipt for the robe charge. They insisted me to pay or I couldn't go inside! Very frustrating, maybe I should have threatened them that I would take a pic of their staff badge and report to authority! note that once we are inside, we can see locals (including non muslim females) simply dress with long pants and long sleeves and are not forced to wear robes they provide. A "photo charge" is applied to everyone with photo taking device including mobile phone. I feel that this is also a rip off but at least this is clearly written at the entrance. But this is way too expensive as an "entrance" fee to this mosque courtyard. You literally can go in, snap some pics and that's it. You cannot go inside the mosque building. Only the external courtyard area.

After climbing the steps to this mosque, shoes must be removed & ladies must enter separately & wear a special covering. Inside you are free to wander around the worshippers square but can not enter the prayer hall. Beautiful from the outside but pales against the many marble buildings I visited later on my trip.