The current study focuses on droplet collisions in interacting sprays, generated from two swirl injectors. We employ the high-speed shadowgraph technique to capture the time-resolved images at various downstream positions within the interaction zone. The images are recorded at 5000–20,000 frames per second (fps). Closer to the injector exit, the droplet collisions are more frequent, so the images are captured at a higher frame rate, enabling us to track the colliding droplets in the instantaneous images. The non-dimensional parameters, such as the collision Weber number (We) and the impact factor (B), are calculated based on the instantaneous images of the colliding droplets. Also, at each downstream location, these parameters are evaluated based on the characteristic droplet size and velocity. It is observed that the parameters based on mean value are in good agreement with the average of the instantaneous values. The We–B regime map depicting the outcome of binary droplet collision indicated that in the current interacting sprays, the collision outcome is mostly stretching separation, which is also demonstrated in the experimental images. It is found that the mean Weber number decreases, and the impact parameter increases downstream of the injector exit in the interaction zone. This suggests the reduction in droplet collision probability. Both droplet size and axial velocity distribution are measured in the current study. The results reveal that in the near nozzle locations, where droplet collision is dominant in the spray interaction zone, the characteristic droplet size reduces, and the mean axial velocity increases as compared to the single injector.