Hello Aastha,
According, to the trends the cutoff of GUJCET Round 2 closing rank for PDPU can be around 5986 for the general category.
And the cutoff rank varies according to the branches as well.

You can refer the link below to know the previous years cutoff of different branches-
https://images.careers360.mobi/sites/default/files/GUJCET-2017-cutoff-Institute-wise.pdf

Hope this helps,
Good Luck!