There are no left luggage facilities at DEL and its not advisable to attempt checking your bags through from Dhaka to ORD. One option is booking a room at a nearby hotel. If not a room, try using the bellhop services at a hotel. Another option is to rent a car (they come with a driver) and keep your bags in the trunk while the driver takes you around the city. As you are prbably very aware - driving in India is not for the faint of heart.
thanks for the logistics advice... I am staying at the Radisson close to the airport on the outbound leg. I'll ask them if i can leave my bags there on the return.
As for checking thru, Mrs.G and I traveled on 9W from KTM back in June and made that mistake. Never again!! 9W wouldn't deliver the bags to AA... finally after 3 days, the AA staff had to go to 9W and get the bags themselves... getting them back to us 4 days after we returned to SFO.
So I am flying 9W from DAC and I will only check them to DEL this time... thus the need to either schlep them around with me or store them somewhere.