It is not the total running in a month but the running per drive. If most of your trips are short distances and intra-city commutes, then yes, you can have a diesel particulate issue. The DPF burns off trapped soot only after it gets hot enough, and this happens only when the car is driven for longer distances and at higher speeds. Roughly a run of about 80kms with speeds above 60kph should be just about sufficient. If these conditions are not met, you will get a message saying the DPF needs a regeneration, and you will have to do run the cycle as instructed.
Typically, the 60 to 80 kms drive with speeds above 60kph or a stationary one with the engine idling above 2000rpm for about 10 minutes. Thus, if your driving includes long runs at least once or twice a week, you should be fine. Otherwise, you should look at the Mahindra XUV700 petrol instead. 
