The Pakhipahar project began towards the close of 1997, though it had been conceived as early as 1991. It has reached an interesting stage with the completion of the 600 ft by 800 ft (182.8 X 243.8 meter) basic drawing over the hill chosen in the Matha range for the colossal carved sculpture of birds in flight. It's an exemplary attempt to revive and rejuvenate the long-lost tradition of in situ rock sculpture. The smallest bird in this huge structure is 55 feet and the largest is a massive one of 120 feet, wing to wing. The drawing and painting of 105 birds were completed in 2007, and now the images on the surface of the hill are clearly visible from a distance of 4km.
The entire process has taken six long years. A total of 130 i-bolts were fixed at different places of the hill; 30 of them were at the southeast crest of the hill. These anchors at several points help the carvers hang themselves with the help of ropes. The next step was to build the scaffolding and it took longer than expected, it was completed in October 2008.
The drilling and carving on rock face were carried out by the carvers standing on bamboo machans of 18 x 48 inchs. Later those machans were developed with iron pipes and fiber sheets prepare by the trained workers at the site. They first drilled on rock face as per marking lines and then carving out the excess stones. These leftover stones also sized as per plane to make souvenir items or can be use some other purposes.