Flats for DDA constructed in 1952 , prefab components were manufactured in HPL's factory
Construction of Fully fabricated four storey building at Vikas Bhawan in New Delhi in 1964-65.
In 1965-66 HPL was engaged in extension and improvement of Terminal Building at Palam Airport., Expansion of export pavilion at exhibition grounds, concrete works at Ashoka Hotel and AIIMS.
In 1968-69, HPL ushered in the area of manufacturing of Railway Sleepers.
In 1974-75 prefabricated components for the complete super structure of the Scooters India Limited.
In 1987-88, approximately 400 prefabricated milk Booths at different places in Delhi were constructed for DMS. Total value of Work done is Rs 88 lakhs.
Company started securing construction projects on nomination basis since 2006.