CrPC 151 vs. Police Officer's Discretion

A police officer, PC Rao, is investigating a theft case in a rural area. He arrests two suspects, Rohan and Akash, and starts searching their houses without any warrant. During the search, he finds some stolen property and a small pouch of ganja. The next day, he gets a warrant under CrPC 151 to search the houses and seize the property, but now it's a day late. Rohan and Akash claim that their rights were violated, and the evidence seized is inadmissible.

What legal remedy applies to Rohan and Akash? Jab tum log mock tests dete ho, I'm at my shift.