Two hours before the fatal shootout at the Chhattarpur farmhouse, Hardeep Singh Chadha had alerted his men about his brother Ponty Chadha's alleged intention to grab the property, police said.
Investigations have also revealed that sacked Uttarakhand official Sukhdev Singh Namdhari met Ponty at farmhouse number 21 soon after Hardeep left the place.
Both brothers used to stay at farmhouse number 21 while the shootout took place at farmhouse number 42.
Unfolding the sequence of events, a senior police officer said Hardeep met his men at the disputed farmhouse number 42 around 9:30am on November 17. Sources said he alerted his men about Ponty's intentions.
Two hours later, Hardeep and Ponty were killed in a shootout at the same farmhouse.
"The dispute was on for two months and the brothers had a heated argument a day before the incident," a senior police officer said.
"Hardeep left his residence (farmhouse number 21) at 9:15am on November 17 and reached the disputed property (farmhouse 42) which was in his possession till then. Around the same time, Namdhari reached Ponty's residence (farmhouse 21)," a senior police officer said.
"Hardeep left for Noida after that. At 11am, Ponty's men reached the disputed property and confined Hardeep's men. One of them informed Hardeep who rushed to Chhattarpur. He reached there at 12:20pm and after a brief scuffle, fired at Ponty," the officer added.
From this point, the sequence is not clear.
"Hardeep was found dead in the guard room and there were no blood traces outside, which raises suspicion that he was chased and shot. This theory puts Namdhari and his PSO's role under the scanner," he said.
Sources said the PSOs of both Ponty and Hardeep, provided by Punjab Police, were late in reaching the spot. While Ponty's PSOs were not present, Hardeep's PSOs followed him.