Prominent architects and heritage activists took part in the press conference which was organised by Paribesh Bachao Andolon (Save The Environment Movement) at its office yesterday.

Dr Abu Sayeed M Ahmed, head of the architecture department of Asia Pacific University, said it is important to preserve the past of the city.

"It is the responsibility of the Department of Archaeology to save the historical buildings. But unfortunately many important buildings are not included in its list," he added.

Dr Sayeed said, "Many think that building of new structures is profitable. But if we can preserve the old buildings and turn them into museums and tourist spots then these can also be a source of good income."

"Dhaka city is the contribution of some big families. If we discuss the past of this city with the successors of these families then we will be able to explore many things about the past of this city," he said.

Rabiul Hossain, an architect and former president of the Institute of Architects Bangladesh, said many old buildings are the sources of history.

"We have a rich past. Many famous persons lived in this city. If we can preserve the buildings in which they lived it will make us proud," he added.

Sohel Ahmed Chowdhury, a former secretary, said national awareness and local efforts are needed to preserve heritage.

"The 400th founding anniversary of Dhaka city will be celebrated in 2010. On this occasion we want to highlight three buildings of this city. These are Shankhanidhi House, Ruplal House and Dhanmondi Eidgah," he said.

A national committee will be formed to chalk out the celebration programme, he added.

Abu Naser Khan, convener of Paribesh Bachao Andolon, said a memorandum will be submitted to the authorities concerned soon to preserve the Shankhanidhi House on Tipu Sultan Road.

Ananda Gopal Shankhanidhi, a successor of Shankhanidhi family who spent a part of his childhood in that house, spoke about various activities and festivals that took place there.

He came to Dhaka on Wednesday to see his ancestral home for the first time in 40 years.

"It was our temple house. Religious festivals and fairs were arranged in that house and these were participated by people of all religions," he said.

Staircase of water lily pond and a sundial at Baldha Garden, Wari Club, Wari Christian Cemetery and Kamalapur Dharmashala are some of the contributions of Shankhanidhi family.