Noida, April 13 - Four armed robbers Friday looted cash and jewellery worth over Rs.15 lakh from the house of a businessman in Noida, police said.

The incident occurred around 5 p.m. in Sector 19.

Robbers looted the valuables from the house Delhi businessman R.P. Manak, who runs a plastic product business from Chawri Bazar in central Delhi.

Manak's daughter, daughter-in-law and two domestic helps were in the house at the time of the robbery.

Superintendent of Police (City) Yogendra Singh said: 'The robbers seemed to know them well. We are looking into this aspect also.'