See your liability in such case shall be as per the agreement with the company if your trip ended and the vehicle was returned then you are not liable in case you were in possession of vehicle then you have to pay as per agreed terms applicable at time of the booking of the bike.

So once the trip has ended and vehicle  was parked at designated place and company was informed of same they cannot hold you responsible for same.

1. A competent counsel can defend you in any suit against you or even criminal prosecution, using the GPS tracking as clincing evidence in your favour. 
2. Later you can even sue them for malicious prosecution/ false legal proceedings. 
3. I would advice you to serve a legal notice upon them through a competent counsel, intimating them that such threats of legal action and indeed any frivolous and blatantly false legal action against you will invite the perils of 2) upon them. 
4. I'm​ prepared, not just to serve such a legal notice upon them as your counsel, but also to defend you and your interests in any judicial proceeding they intiate against you.

Dear Sir,

you are not liable and they may not go to any court. They have to file a complaint with police and they will trace it out. You have done as requested. Your responsibility ended then and there. 

You have parked bike in front of your house as directed by company 

2) GPS tracking confirmed same 

3) you are not liable if subsequently bike is stolen 

4) they should file claim with insurance company and lodge FIR about loss of bike 

You are not liable if bike was stolen 

you have followed the instructions 

If the same was ended as per the agreement then after making the parking you are not liable for the theft of the property

Let them file a case, it will eventually be decided in your favor 

You can file a police complaint to that respect.  They can't hold your  legally responsible for the same

You would not be liable to pay them anything as the the agreement had come to a closure. They will have to recover the amount from the insurance company if the bike is stolen. 

As the trip had ended and you had Park the bike in front of your home which was duly intimated to them and the same was also reflected in the GPS tracker, your liability to indemnify them does not arise at all.

Even if the file any legal case against you, you can easily defend your interest and would not have to pay them anything 

no need to worry,  you are not liable, if trip was ended  do you have any confirmation sms or any text. 

You can challenge their claim based on the documentary evidences and merits in your side.

You collect the GPS details before that.

If you had followed the procedures correctly and complied with the conditions properly then, if you receive a legal notice you may issue a reply notice suitably.

Dear Client 

As per agreement and direction by company you have parked the bike at the place directed by the company. 

Once trip was ended and vehicle parked at location told by company you are liable for su sequent loss or theft of bike.

The law suit against you is not maintenable the company should lodge the FIR for bike theft.