DX- Low end Swift version without ABS,without AlloyRims with Yokohama tyres,different PRE,non-matching side mirrors and door handles and some minor interior cosmetic changes which include the chrome work on AC Vents and door panels.
DLX- High end Swift version with ABS,AlloyRims with Bridgestone Turanza,matching side mirrors and door handles,JVC Pre and chrome work on AC Vents and door panels.
The Swift initally launched in 2010 was actually the DLX version (but without the DLX Badge i.e it was sold as "Swift" only).In 2011, they categorized it in DX and DLX Version.There is no difference in 2010 and 2011 Swift.The Pre which was being offered in 2010's Swift has now been replaced with another one in the DLX Version.
Not to mention, the front grill of DLX is chromed whereas, DX gas black honeycomb type plasticy feel grill... Also, dx doesn't have fog lights...
Actual Registration Charges are 43.5K (Challan Fee).
If u hire an agent Or you get your Registraion done through Showroom then they will charge extra , showroom charges 2.5k.