"Investigation into the Dabholkar murder case is on the right track. The case will be cracked soon," Patil assured a delegation of journalists.
Till the investigation reaches logical end, concerned police personnel would not be given any other work, he said.
"Their only job till then will be to crack the case and nab the accused," he said.
Asked to specify a time frame within which the case would be cracked, Patil said, "Reasonable time should be given to the police. It will make no sense if they arrest one or two persons, who are of least importance."
Amid spontaneous public outrage and grief over 69-year-old Dabholkar's killing in Pune on Tuesday, the state government on Wednesday had cleared a proposal to promulgate an ordinance to check black magic and inhuman religious rituals.