Hi
1) Since it was a suit for specific performance which was dismissed on grounds of Readiness and Willingness, you can choose to buy the property from the land lord.
2) Also, an appeal against district court order has to be filed within 90 days from the date of decree passed by the court vide Article 116 of Schedule 1 of limitation act.
3) So, you can check the high court website to know whether any appeal has been filed within 90 days and if any stay order has been granted in the appeal filed by the appellant.
4) If there is no stay order by the high court, you can consider it 100% safe to buy the property.
5) If there is no stay, you can proceed to buy, do cultivation, development etc.
6) In the worst case scenario, your seller shall be liable to compensate you by way of return of monies along with bank rate of interest. However in the sale deed, you should ensure that an indemnity clause is incorporated.
Hope this information is useful.