Wishing people on Dalit icon Bhimrao Ambedkar's 127th birth anniversary, Modi tweeted: "Pujya Babasaheb gave hope to lakhs of people belonging to the poorest and marginalised sections of society.
"We remain indebted to him for his efforts towards the making of our Constitution."
In a series of tweets, Modi wished the people of Assam, Kerala, West Bengal, Tamil Nadu, and Odisha on their respective harvest festivals and new year celebrations -- Rongali Bihu, Vishu, Naba Barsha, Puthandu Pirappu, and Maha Vishuba Sankranti.
He said the country was proud of its diversity.
"People across the nation are celebrating various festivals. Greetings to everyone on these special occasions," he tweeted.
"Best wishes to the Tamil people on the special occasion of Puthandu. I pray that all your aspirations are fulfilled in the coming year."
"Happy Vishu! May the new year bring with it new hopes, more prosperity and good health."
Modi greeted the Bengalis on Poila Boishakh and wished that this new year brings peace, prosperity and happiness in everyone's lives. "Shubho Nabo Barsho!"
Along with tweeting his greetings in English, the Prime Minister also wrote his messages various regional languages.
"To all my Odia friends across the world, greetings on Maha Vishuba Sankranti! Have a wonderful year ahead. We take immense pride in the rich Odia culture."
"Baisakhi Greetings to everyone. May this festival bring joy in everyone's lives. We also express gratitude to our hardworking farmers, who work continuously to feed our nation," he added.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)