First, there must be an extradition treaty.
Second, between most countries, a person who gets extradited can only be convicted for the crimes in the extradition request. That sometimes causes a delay. In your case, Indian police might not be sure that they found all the crimes this person is guilty of. If they got an extradition today, they couldn't charge him with crimes they discover later. A bad situation if someone badly injured a person who might die from the injuries, but hasn't died yet. If they ask for extradition now, the criminal might not be convicted for murder if the victim dies later, so the police may wait.
You'd obviously try to flee to a country where there is no extradition treaty. No idea what the situation is between UK and India.
When a request for extradition is received, the question is: 1. Would it be a crime in the country receiving the request if the roles of the countries were exchanged? 2. Does the requesting country have enough evidence that the person would be taken to court in the receiving country? 3. Is there a guarantee of a fair trial, and no cruel or unusual punishment (for example death sentence, cutting off hands of a thief etc. ) and lastly is the crime significant enough, since the extradition itself would already be some kind of punishment.
And that kind of request takes time. If he fled nine days ago, there is no way that he could be already extradited. First the Indian police has to gather evidence that he actually committed a crime, ready to submit to the UK police. Nine days is probably not even enough to send the request. And as I said, if the police has evidence of four loans and gets him extradited, and then they find 20 more loans, they can't convict him for those if they are not part of the extradition request.