Accused Satnam Sachdev (38) was apprehended from Manali in Himachal Pradesh yesterday, police said.
According to police, Sachdev had been employed to take care of the couple at their residence 22 days prior to the attack.
Joint Police Commissioner (Crime) Sadanand Date said, the accused had attacked 82-year-old Hirachand Jain and his 79-year-old wife at their Khar residence on October 16, with a steel rod and decamped with the booty worth Rs 3.82 lakh, including gold ornaments, mobile phone and cash.
A case of attempt to murder and robbery was registered at Khar police station. The crime branch had begun a parallel investigation into the case as the crime involved senior citizens.
Acting on a tip off, a crime branch team reached Jalandhar in Punjab, but in vain. Finally, Sachdev was tracked down in Manali yesterday.