Mumbai: On the occasion of Gurpurab -- the birth anniversary of Sikhism's founder Guru Nanak Dev -- Bollywood celebrities, including Amitabh Bachchan, Rishi Kapoor and Sridevi, on Saturday sent out wishes for peace, positivity and happiness to their friends and fans.

The celebs took to Twitter. Here's what they had to say:

Amitabh Bachchan: Greetings on Guru Nanak Dev ji's Birthday.

T 2700 - Greetings on Guru Nanak Dev ji's Birthday .. pic.twitter.com/UHJ92bWsCl
— Amitabh Bachchan (@SrBachchan) November 3, 2017

Rishi Kapoor: Wish one and all!

Wish one and all! pic.twitter.com/bq9m61qOwO
— Rishi Kapoor (@chintskap) November 4, 2017

Sridevi: Wishing everyone a very happy Guru Nanak Jayanti.

Wishing everyone a very happy #GuruNanakJayanti
— SRIDEVI BONEY KAPOOR (@SrideviBKapoor) November 4, 2017

Madhur Bhandarkar: May Guru Nanakji bless you and your family with joy,

May #GuruNanak ji bless You & Your Family With Joy,
Peace & Happiness... #HappyGuruNanakJayanti ? pic.twitter.com/O95OhXVBaR
— Madhur Bhandarkar (@imbhandarkar) November 4, 2017

peace and happiness. Happy Guru Nanak Jayanti.

Kabir Bedi: I BOW before Guru Baba Nanak's teachings of tolerance, gender equality, respect for nature, caring and sharing. Gurpurab, Guru Nanak Jayanti.

I BOW before Guru Baba Nanak’s teachings of tolerance, gender equality, respect for nature, caring & sharing. #Gurpurab #GuruNanakJayanti pic.twitter.com/RzLu81231K
— KABIR BEDI (@iKabirBedi) November 4, 2017

Sajid Khan: To all my friends. Guru Nanak Jayanti.

To all my friends.. #GuruNanakJayanti #Gurpurab pic.twitter.com/I0RxYOltpX
— Sajid Khan (@SimplySajidK) November 4, 2017

Neha Dhupia: Gurupurab diyan sab nu lakh lakh vadhaiyan. (Wishing you and your family a very happy Guru Nanak Jayanti)

Gurupurab diyan sab nu lakh lakh vadhaiyan ? pic.twitter.com/nWTMANYkOl
— Neha Dhupia (@NehaDhupia) November 4, 2017

Armaan Malik: Happy Guru Nanak Jayanti and Gurpurab! May everyone keep spreading only peace, love and positivity.

Happy #GuruNanakJayanti & #Gurpurab! May everyone keep spreading only peace, love and positivity ✨
— ARMAAN MALIK (@ArmaanMalik22) November 4, 2017

Diljit Dosanjh: Guru Nanak Jayanti.

Waheguru? Sahib Shri Guru Nanak Dev Ji de Parkash Purb Dian Sareyan Nu Lakh Lakh Mubarkan Ji ? DHAN GURU NANAK ? pic.twitter.com/5glH0VpxTs
— DILJIT DOSANJH (@diljitdosanjh) November 4, 2017

Ashoke Pandit: Guru is an aspiration. Guru is an inspiration. Happy Gurpurab. Guru Nanak Jayanti.

GURU Is an aspiration
GURU is an inspiration.#HappyGurpurab #GuruNanakJayanti.??? pic.twitter.com/f9Y76dLnBo
— Ashoke Pandit (@ashokepandit) November 4, 2017

Kunal Kohli: Guru Nanak Jayanti peace on earth to all.