कार्यं मे सिद्धिमायातु प्रसन्ने त्वयि धातरि ।
विघ्नानि नाशमायान्तु सर्वाणि सुरनायक ॥

Meaning:
Oh! Creator, Oh leader of the gods; May success come to my efforts by your grace (lit. while you are pleased); (and) May all the obstacles meet their end!

Word meanings:
कार्यं = that which is done or to be done;
मे = to me or my;
सिद्धिमायातु = May reach fulfillment;
प्रसन्ने त्वयि धातरि = while you (the maker or supporter)
are pleased.;
This is the so-called sati-saptamI, a typical phrase where the;
saptamI vibhaktI has the unusual meaning;
धातृ = in the maker ; author; creator;
विघ्नानि = the obstacles; hurdles;
नाशमायान्तु = May (they) come to end;
सर्वाणि = all;
सुरनायक = the leader or head of the gods;