A non-resident Indian was found murdered on the 14th floor of Sudhakar Building in Malabar Hill, Mumbai, on Saturday.
Asha Goel, 61, had arrived from Toronto 10 days ago, police said, adding she was found lying on the ground with serious head injuries.
A diamond ring, a mobile phone and cash totalling Rs 121,000 was found missing.
Robbery is suspected to be the motive behind the murder.
Goel had come to the metropolis to visit her brother's family, the police said.
No one has been arrested so far. The police are questioning the building watchmen and domestic help to gather clues.
The family of the deceased in Toronto has been informed of the incident, the police added.