Here is what they said on Twitter:
Amitabh Bachchan: A very happy and prosperous Makar Sankranti and a happy Pongal. May all that you wish fructify. Love and affection, ever.
Sridevi: Greetings to all on the occasion of Pongal. Hope this festival brings you happiness, peace and good luck to your lives.
Manoj Bajpayee: Happy Makar Sankranti to you all! (The) sun enters in makar! may you all have a great year.
Vivek Oberoi: Happy Makar Sankranti and Pongal to all celebrating! I love the number of festivals our culture has throughout the year...we truly celebrate life.
Madhur Bhandarkar: Best wishes on the auspicious occasion of Milad-un-Nabi and Makar Sankranti! God Bless.
Sonu Sood: Wishing Eid Milad-Un-Nabi Mubarak and Makar Sankranti to everyone. Stay blessed.
Divya Dutta: Happy Makar Sankranti and new beginnings.
Richa Chadda: Happy Makar Sankranti to all. Pyar(love).
Anupam Kher: Happy Pongal, Vishu, Makar Sankranti and Eid Milad-un-Nabi to all of you. Love, peace and happiness always.