Bonjour Dipika !
Technically, this sentence "J'y peux venir ce soir" is correct to say "I can come there tonight".
However, no one French would actually use this formulation.
We'd rather say:
Je peux venir ce soir. or
Je peux venir ici (here)/là (there)/là-bas (over there) ce soir.
I hope that's helpful!