Takedowns are an essential part of your overall game. Especially if you are a ground fighter. Here Karo Parisyan demonstrates a modified Judo throw called Uchi Mata.
Karo is a very accomplished mixed martial artist and one of the leading people when it comes to showing how effective Judo can be in MMA.
In the video above Karo does a good job of breaking the technique down so you can understand what he is doing. He also demonstrates the technique a number of times from different angles and speeds.
He briefly shows that the throw can be done with an overhook. For me this feels like the best grip. It seems to give you more control over your opponent.