Sometimes we accept a particular deal but during the course of execution, we feel we have not assessed properly. In such a case you can try by placing your request and ask for an upper revision. If it is accepted well and good. If it is rejected also you have to go ahead and complete the task as you have agreed for the same.
K Mohan @ Moga
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease