A balloon with an imprint of the Pakistan flag and "14 August Mubarak" written on it was found in a field in Rajasthan's Ganganagar district on Thursday, police said.
A villager in Raisingh Nagar area spotted the balloon and informed the police.
Pakistan's Independence Day is celebrated on August 14.
Ganganagar is among four districts of Rajasthan which shares a border with Pakistan.
In the last few days, nearly a dozen such balloons have flown in here.
Police said intelligence agencies have been informed about the matter.