Hey!

With 457 rank , your chances are negligible to get a good branch like ECE in the OU or JNTUH  campus. With this rank , you can expect a seat in ons of the low ranked colleges affiliated to OU . As for getting a seat in ECE branch in OU or JNTUH campus , your eank musy be below 70. And your rank is much more than that.

But don't worry ,  participate in the counselling process and hope for the best .

For more information  , follow the given link:

https://engineering.careers360.com/articles/ts-pgecet-counselling

Hope it helps!