The incident took place in south Delhi's Malviya Nagar between 9.30 am and 1 pm.
Sunil Samuel, who stays in Malviya Nagar's M block, told police he had left his house around 8.30 am and returned around 1.30 pm and found the lock of the main door broken and the house ransacked.
"He told police that around Rs 1.5 lakh in cash and jewellery worth approximately Rs 20 lakh was burgled from his house when he, along with his family, had gone to attend church service in Vasant Kunj area of south Delhi," said a police official.
Police said prima facie it seems the burglary was committed by more than three people, and someone close to the family might be involved.
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