What crops can be grown in the month of january 2013 in cuddapah district of AP

which crops (either cash crops or food crops) can we start to cultivate in the month of december 2012, january 2013 in cuddapah district of AP? Soil type is black soil. I have 7 acres of land with 2 bores. Please suggest me with a proper crop suitable for that season taking all the conditions into consideration. If you suggest a crop of non-traditional type also tell me the source of marketing for that. Please reply even to my mail perneti_karthik@yahoo.com.