Sharma,
While not easy in the best of circumstances, depending on what you have, and what you need to do, there are some possibilities, and one might help.
First, I would attach a screen-cap of the that Video. You might need to post a couple, if things change dramatically in the Frame. No promises, but there might be some options.
However, if you can take Jim's suggestion, and get the footage without the Text, things will be so much easier.
Also, do you have access to Adobe After Effects?
How about Photoshohop Extended, CS 6, or CC?
If it cannot be done in PrPro (fewer Tools to employ), it might be possible in AE, or Ps (through Rotoscoping).
Let us see what you have, and someone will try to help, though remember that the answer might be just as CC_Merchant says, "No."
Good luck,
Hunt