On the occasion of Gurpurab - the birth anniversary of Sikhism's founder, Guru Nanak Dev - Bollywood celebrities like Amitabh Bachchan, Lata Mangeshkar and Shah Rukh Khan Thursday took to Twitter to wish their friends and fans.

Here's what they had to say:

Amitabh Bachchan: Happy Gurupurb! Birth Anniversary of Guru Nanak Dev ji...6th Nov... lakh lakh vadhaiyaan !!

Lata Mangeshkar: Namaskar. Guru Nanak Dev ji ki Jayanti par aap sab ko bohot shubh kaamanaayein.

Shah Rukh Khan: May the peace & kindness that came to this world today prevail all over. A Happy Baba Guru Nanak Birthday to all. Serenity & Love.

Akshay Kumar: Nanak Naam Chardi Kalaa Tere Bhane Sarbat Ka Bhala. Wishing you all a very Happy Gurupurab.

Bipasha Basu: Happy Gurpurab :)

Vivek Oberoi: On the auspicious occasion of Shri Guru Nanak Dev ji's birthday, may guru bless you with happiness and prosperity.

Anupam Kher: Gurupurub di lakh lakh vadhaiyan.:) #GuruNanakDevJi


Farhan Akhtar: Wish you all a Happy Gurupurab.

Anubhav Sinha: Happy Guru Nanak Dev Jayanti. Specially to Bank Employees!!!

Manish Paul: Happy Gurupurab to all. Stay blessed.

Madhur Bhandarkar: May The Name Of WaheGuru Be Enshrined In Your Heart. May Guru Ji' s Divine Love and Blessings be with u Always. HAPPY GURPURAB !!

Neha Dhupia: DHAN DHAN SHRI GURU NANAK DEVJI de parkash utsav aate guruprub diyan aap sab nu lakh lakh vadhayeeyan .... #HappyGurpurab

Kapil Sharma: Dhan Guru Nanak pargatiya.. Miti dhund jag chanan hoiya.. Happy gurpurab.

Rohit Roy: Happy gurupurab..

Divya Dutta: Happy Gurpurab to all