Dear colleague,
The term 'Termination' has negative connotations and in the context of project based appointments which generally are fixed time employment contracts is inappropriate.
Assuming that you had issued FTC letter to them containing a specific clause stating that the contract/ employment will come to an end on the date when project is completed, then what you are communicating them is only a formal intimation of the contract having come to an end .
You can word this letter as follows:
" In terms of the clause --- of your letter of the contract, it is being intimated to you that,
your period of fixed term appointment will come to an end / ended w.e.f. (date) on close of working hours."
Legally also this wording gels well with the current practice, apart from sugar coating the action of termination.
Regards,
Vinayak Nagarkar
HR- Consultant