Hello Nihal!!

First of all, you have not mentioned your category so I am considering you in General Category then with 4500 rank, It's Impossible to get a seat in Hewett Polytechnic.

For the General Categories also, girls candidates rank should be near about 1500 and boys should be 1000-1200, otherwise there is no chance to get the seat in it.

As there are less seats also and it is the best college for polytechnic so, students mostly prefer it. Then, might vacant seats are also not present.

But don't lose hope, you can do well and try your best for the next attempt if you want to take a drop otherwise take any other good college with this rank.

I am providing you the link, through which you can get to know about all the details of Hewett College and their cut-offs too for different courses:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/colleges/hewett-polytechnic-lucknow/amp&ved=2ahUKEwiDj6fxqcPsAhVizzgGHe_1B3cQFjAAegQIAhAB&usg=AOvVaw0ii2DxmrcmRQs5iveulDWM&ampcf=1&cshid=1603202483690

Hope that my answer helped you!!

Good Luck and Best Wishes for Future!!

Thank You