Thanks everyone for viewing and comment. @ Patra sir, I have used 300mm zoom. The time was around 6am, the light was poor more on that they sat on a shady area. It was my ill luck. The image is cropped, we have 5 person in a gypsy and everyone tried to make a good shot so the vehicle was rocking like a boat and the cubs were enjoying the circus. But there is no doubt it was a great experience. Thanks.