This study examined the teaching aptitude of future teachers of Haryana. Sample consisted of teacher trainees pursuing the Diploma in Education in District Institute of Education and Training, Gurgaon (N-174) and Government Elementary Teacher Training Institute, Mewat (N-101). They were representative of the students who will teach in 12 other districts. The Teaching Aptitude Test Battery developed by Singh and Sharma (2011) was administered and teaching aptitude was found to be average, even though students scored significantly low on mental ability and adaptability components of the test. On correlating percentage in boards, on the basis of which students are granted admission in the institute, with teaching aptitude as well as with mental ability, a positive but weak correlation was found in both cases. No significant correlation was found between previous educational qualifications and teaching aptitude, as well as between age and teaching aptitude, although adaptability positively and significantly correlated with age. No statistically significant difference was found in the teaching aptitudes of males & females. Results have been discussed in light of policy implications.