1. Neither they can be forced to sell the shop to you, nor you can be thrown out of the shop by them.
2. The owner can file a case against you for recovering the possession of the shop rented by him. If and when he moves to court you will get sufficient opportunity to fittingly contest his case.
3. In order to protect your tenancy from being brought to a premature and illegal end you may move to the court and seek a stay order against any planned unlawful possession of the shop by the owner.