Explanation:

• Prime Minister Shri Narendra Modi laid the foundation stone of Light House projects (LHPs) at six sites across six States through video conference on 1st January 2021. 
• The LHPs will be implemented at Indore (Madhya Pradesh), Rajkot (Gujarat), Chennai (Tamil Nadu), Ranchi (Jharkhand), Agartala (Tripura) and Lucknow (Uttar Pradesh).
• The project is being constructed under Global Housing Technology Challenge (GHTC)-India. It has been conceptualised by the Union Ministry of Housing and Urban Affairs.