New Delhi, July 2 -- Sitaare Zameen Par Box Office Collection Day 13: Aamir Khan's Sitaare Zameen Par has maintained a strong hold on the Indian box office for almost two weeks now, crossing the Rs.130 crore mark in 13 days.

It is now gearing up for a fierce competition from Anurag Basu's Metro in Dino from Friday, July 4.

According to film trade analyst Taran Adarsh, Sitaare Zameen Par has done best business in urban centres, and this latest release is most likely to impact it.

"The arrival of Metro In Dino this Friday could impact its performance at urban centres, where the film is currently doing its best business," he said.

According to industry tracker Sacnilk, Sitaare Zameen Par had a dull day at the box office on Wednesday, Jul...