Bradford's curry capital crown is under threat because the city is saturated with poor quality restaurants, a business adviser has warned.

Arshad Javed, organiser of the Asian Trades Link which advises Asian businesses, is urging restaurateurs to branch out into different areas of cuisine to keep diners coming back for more.

And he said far too many curry houses offered the same dishes.

His warning comes after the closure of the Koh-I-Noor restaurant, formerly Bombay Brasserie, in Westgate, Bradford.

Anu Anand, who took over the listed chapel building in October 2002, moved up from London with husband Raj and their two children with dreams of running a profitable curry house.

Last year she had to use £250,000 from her husband's property business to try to keep the restaurant afloat. She eventually closed down.

"If we had been from here we would have realised a lot sooner the restaurant was a non-starter. Now, with hindsight, there's no way I would look at setting up a new restaurant in Bradford," said Mrs Anand, who used to run a five-star hotel in New Delhi, India.

She said a major problem was covering the annual £52,000 rent and £24,000 rates when their income was at best £3,000 a week before out-goings.

Mr Javed said Bradford, like all cities, should offer a diverse range of restaurants catering for all tastes to keep diners coming in.

"Every curry house offers the same thing, the same dishes, the same lay-out, and it's only the big names that are doing well," he said. "There is an over-supply and people don't want more of the same."

Mr Javed said he was keen to set up a South Asian association to look at how restaurateurs could work together to improve trade in the district.