PM Modi inaugurates extension building of Parliament House annexe PM Modi inaugurates extension building of Parliament House annexe Prime Minister Narendra Modi On Monday Inaugurated A New Building Within The Parliament House Complex Which Will House Rooms And Offices Of Various Parliamentary Committees. PTI | Updated on: 31 Jul 2017, 05:37:16 PM New Delhi: Prime Minister Narendra Modi on Monday inaugurated a new building within the Parliament House complex which will house rooms and offices of various parliamentary committees. The new extension building to the Parliament House annexe is said to be energy efficient and will use solar technology to save conventional power. The new structure has two blocs. While one houses committee rooms and an auditorium, the 'high rise' block houses offices of chairpersons of various committees.