Swiggy delivery partners, why is Instamart unserviceable in certain parts since mid-February?

For example, it's serviceable in Peroorkada (store location) and Uloor (5+ km away from store) but not Vattiyoorkavu (4 km away) or Nalcharra (3 km away). I thought it was valentine's rush and limited distance, but now it's almost a week past valentines and closer location not serviceable. Something's up. Are they restricting particular routes?