Officials said at least 209 fire-related calls were received until 10 pm Wednesday.
A massive fire at a factory in New Delhi's Bawana area, was among the over 200 fire-related incidents reported to the Delhi Fire Services (DFS) on Diwali, officials said.
No casualties have been reported in the incident at the factory and 18 fire tenders have been pressed into service to douse the blaze, the Delhi Fire Services (DFC) said.
"The fire broke out at a factory in outer Delhi's Bawana locality. The call about the fire was received at 6:37 pm and immediately 18 fire tenders were rushed to the spot.
"The fire team is trying the bring the situation under control. Fortunately, no injuries or casualties have been reported so far," a senior DFS officer said.
He said a fire also broke out in an ATM in Delhi's Laxmi Nagar.
Officials said at least 209 fire-related calls were received until 10 pm Wednesday. Fires from crackers were less this year, they said.
Out of the total calls, 89 were fire at garbage and dump yards. Fires were also reported from factories and at houses due to domestic items and those related to electricity wires, officials said.
There has been no decline in the number of calls related to fire-incidents this year. Last year it was 200, they said.
The 209 calls were made from midnight of November 6 to November 7 until 10 pm, the official said.
Maximum calls were received from west and northwest districts of Delhi.
"We have been receiving frequent calls from across the city. However, maximum calls have been received from west and northwest parts of Delhi until now," the official said.
"Even last year, there was a ban on sale of firecrackers but we got close to 200 calls. This year, there were time restrictions on bursting of firecrackers and only green firecrackers were sold in the market but there has been frequent calls related to fire-incidents," he said.
There has been frequent calls coming in from various parts of the city. There has been no decline in calls. However, calls related to fire-crackers have been comparatively less, the official said.
Besides the 59 permanent fire stations in the national capital, the department has set up temporary stations at different locations across the city.