PM Modi added that the measures taken today were recommended in 1993 but were stalled due to vote-bank politics by the political party that remained in power for the longest time.
In his almost three-decade-long political career, it is the fourth party Manpreet joins. He had differences with Punjab Congress chief Amarinder Singh earlier.
Both BJP and AAP have 14 councillors each in the House, while Chandigarh MP also has a vote being an ex-officio member of the municipal corporation House.