SFF conducted several mission, including the destruction of the Kaptai Dam and other bridges.

The organisations agitated on behalf of the 100,000 native peoples displaced by the construction of the Kaptai Dam, seeking rehabilitation and compensation.

Widespread resentment occurred over the displacement of as many as 100,000 of the native peoples due to the construction of the Kaptai Dam in 1962.

Since the Kaptai dam flooded the valley creating to Kaptai lake, the valley people have started to live on hill tops along the hill people.

The Kaptai Dam on the Karnaphuli River created for this purpose resulted in the Kaptai Lake.

The government failed to address the long-standing issue of the displacement of people, numbering an estimated 100,000 caused by the construction of the Kaptai Dam in 1962.

The lake was created as a result of building the Kaptai Dam on the Karnaphuli River, as part of the Karnaphuli Hydro-electric project.

An earth-filled dam on the Karnaphuli River, the Kaptai Dam created the Kaptai Lake, which acts as the water reservoir for the hydropower station.

The Kaptai Dam is the location of the Karnafuli Hydroelectric Power Station, constructed in Kaptai in 1962 and the only hydro-electric power plant in the country.

The Khawthlangtuipui River flows through Tlabung, it is navigable up to Rangamati, Bangladesh but due to construction of Kaptai Dam, access to Port of Chittagong is not possible by boat but accessible by road.

All these clans and groups are clustered into two major ethnic families - the hill people and the valley people - though since the Kaptai dam flooded the valley to give birth to Kaptai lake, the valley people have started to live on hill tops along the hill people.

This forcefull dealing and the construction of Kaptai Dam by then East Pakistan government in Chakma areas submerged cultivable lands and displaced thousands, resulted in the migration of a large population of Chakmas into Diyun the state of Arunachal Pradesh of the present Indian Union.