There are so many other things that don't make sense too...anyways 'bakwas' seems like the new trend😛
Anika has a scooty...she knows how to drive as well
Now logic says, Anika manages her expenses with great difficulties and she already told Shivay her house is very far from the Oberoi mansion, so save money she might be using public transport to commute and due to a taxi strike Shivay went to drop her
Shivay keeps accusing of Anika being a gold digger and moreover, he left his phone too at her place so on humanitarian grounds she came to return both the things, nowadays its hard to live without your cell phone😳 And she might have come on her scooty champa...hope that clears the no logic confusion