Surat: Police in Surat say "local help" was involved in the placing of over two dozen unexploded bombs found in this diamond city in the past two days.

Police Commissioner R.M.S. Brar yesterday said the threat is not yet over as more bombs are likely to be recovered in days ahead.

"It is simply not possible without local help, looking at the events in Surat in last couple of days with live bombs being found at many places."

Yet another bomb alert was sounded yesterday in Ankleshwar, 50km from here after a packet was found near sweetmeat shop in the Manav Mandir residential area. The shop owner called the police.

The packet turned out to be harmless with a "pressure meter" used for industrial purposes packed inside.

Integrated circuit chips, a technique of Al Qaida, were used to assemble bombs in Surat and Bangalore, the statement said.

Intelligence agencies are baffled why bombs not meant to detonate were planted, he said.

A letter threatening to blow up the Vadodara Stock Exchange turned out to be a hoax.

A letter written in Hindi and received yesterday said that there was a bomb in the exchange and the building should be evacuated immediately.

The letter, which was addressed to VSE's managing director Deepak Rawal and signed "Atankvad [extremist] Jihad", was handed over to the police. The letter was posted in Vadodara on July 30.

Police personnel and dog squads searched the building but nothing dangerous was recovered, the police said. Of the two entrances to the building, one was closed.

Chetan Shah, the Southern Gujarat Chamber of Commerce and Industry president, said the textile business suffered nearly Rs1.5 billion (Dh13 million) loss in the last few days because of the bomb scares.

Japanese embassy

The Japanese Embassy in New Delhi has received an e-mail warning of a bomb in a New Delhi market, and has warned its citizens to stay away from crowded public places, a notice posted on its website said yesterday.

The warning came after 29 explosions shook two Indian cities over the weekend, killing at least 43 people and wounding scores more. An e-mail warning preceded most of those bombings, and dozens of other unexploded bombs have since been found in a western Indian city.

Indian police said they were trying to trace the e-mail.

But the threat "doesn't look like it's serious", said a senior New Delhi officer, Alok Kumar.

He added that the weekend's bombings had already led police to step up security across New Delhi and no extra measures were being taken yesterday. Japan's embassy said it received an e-mail warning of a bomb in the capital's popular Sarojini Nagar market.