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.
Lok Sabha Speaker Sumitra Mahajan, Parliamentary Affairs minister Ananth Kumar and Urban Development minister Narendra Singh Tomar were also present at the ceremony.
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