Occurrence of  multiple primary malignant tumors is very uncommon .Co occuring tumors can be synchronous or non synchronous.Tumors presenting within  a period less than or equal to 6 months are called synchronous   and  if they occur after 6 months they are termed as metachronous. Synchronous malignancies are rarer than metachronous.  For  defining  tumors as synchronous  both   the tumors should show criteria of malignancy, possibility of metastasis  must have been ruled out and both the tumors should be pathologically distinct. Breast cancer is the commonest tumor to be associated with other malignancies such as colorectal, endometrial, ovarian carcinoma, yet occurrence of invasive ductal carcinoma with clear cell renal carcinoma is rare. We present a 70 year old female with   synchronous Breast carcinoma and Renal clear cell carcinoma .