India, April 6 -- Eighteen days after nine members of a family, including three children, were killed in a massive blaze that ripped through their four-storey residential-cum-commercial building in southwest Delhi's Palam Colony, the Delhi Police on Sunday said the report on the exact cause of the fire was "inconclusive".

The report was released from electrical inspector office under the labour department of Delhi government."The report states: It is not feasible to ascertain whether the fire caused damage to the insulation of the electrical installation, or whether the fire broke out after a short circuit occurred in the electrical installation," said a senior police officer.

Now, investigators are waiting for reports from other agenci...