Cross-lagged panel correlation (CLPC) analysis has been used to identify causal relationships between mathematical creativity and mathematical aptitude. For this study, 480 8th standard students were selected through a random cluster technique from 9 intermediate and high schools of Varanasi, India. Mathematical creativity and mathematical aptitude tests were administered twice, 4 months apart. The CLPC analysis uncovered a significant relationship between mathematical creativity and mathematical aptitude. It appears that mathematical creativity was a cause of mathematical aptitude, rather than the converse (i.e., higher mathematical creativity leading to higher mathematical aptitude). Limitations and future directions are outlined.