5,000 Image Bounding-Box Annotation

I have a collection of 5,000 images that must be annotated with clear, tightly-fitted bounding boxes around the single object of interest in each frame. These labels will feed directly into a new machine-learning pipeline, so consistency and pixel-accurate placement are essential... (Budget: ₹100 - ₹400 INR, Jobs: Computer Vision, Data Annotation, Data Labeling, Data Processing, Deep Learning, Image Processing, Image Recognition, YOLO)