Puja rules

Peepapl Tree : ಅಶ್ವತ್ಥ ಮರವನ್ನು ಯಾವಾಗ ಪೂಜಿಸಿದ್ರೆ ಉತ್ತಮ?

Why people not worship Peepal tree on sunday and the reason by this practice explained here.