BJP workers in Delhi celebrated by illuminating streets and organising public gatherings where giant screens were installed for the live telecast of swearing-in ceremony from the Rashtrapati Bhavan.
Rallies and human chains were also formed in many cities by the enthusiastic supporters who were preparing for the day following BJP's astounding victory in Lok Sabha polls.
Chief Ministers of various states and other leaders congratulated the new government.
Uttarakhand Chief Minister Harish Rawat and his Himachal counterpart Virbhadra Singh, both of Congress, said their governments will work as a partner with the central government in the interest of their states and the country.
The two leaders did not attend the ceremony.
Rajasthan Chief Minister Vasundhara Raje congratulated Modi and hoped India would emerge as the strongest nation and super-power under his leadership.
Also with the wishes came the hopes of the regional leaders that the new central government will fulfill their long standing demands.
"I have greeted the new government under Narendra Modi. I once again congratulate the new government that will take charge in the evening," former Bihar Chief Minister Nitish Kumar said
Kumar said he has "great expectations" from the new Union government and Bihar should get special category status and special package.
Kumar and Modi had not missed any opportunity to attack each other politically since last year and Modi's elevation in the BJP had prompted Kumar to pull JD(U) out of NDA in June last year after being in it for 17 years.
