Warning Letter Issued To Contactor

Dear Members
One contractor is absent without any information to client and not paid to workers to their salary. now we want to issue a show cause notice and warning letter and contact close letter to the party what is the process kindly suggest me
MATTER MOST URGENT

My dear Friend,
I don't know what you call it a process. Matters related to contractors are dealt with by Commercial Department and I dont know the procedure in your organization.
You can straight away issue the warning letter marking a copy to the client concerned who is affected. In case of termination of contract only, we have to consult the user department / client whether any pending jobs are there with this contractor.
In the meantime, hope you would have warned the contractor severely verbally over phone and to record we have to issue a letter and get it filed with us.
In case of any conditions mentioned in the Contract Deed / Order, please do mention it and you may even impose penalty for the loss according to that condition.
Please seek written explanation from the contractor without fail and record it.
All the best,
Ganesh Ramachandran