London thumakda" fame singer Labh Janjua was found dead at his residence in Goregaon (West) on Thursday morning, police said.

He was found dead in his bedroom when his maid came for her routine work.

Labh's body was taken to Cooper Hospital for post mortem and the police was investigating further as his sudden death raised several questions.

Labh Janjua sang for numerous Bollywood films like "Pyaar Ke Side Effects", "Dev.D", "Singh is Kinng", "Partner", "Queen" and "Garam Masala".

Labh also crooned for Akshay Kumar's latest release "Singh is Bliing".

Bollywood celebrities like Ayushmann Khurrana, Pritam, Sunidhi Chauhan and Shaan have mourned the tragic demise of Punjabi singer Labh Janjua, calling it a big loss to the Indian music industry.

B-Town took to Twitter to express their grief. Here's what they have written:

Ayushmann Khurrana: RIP Labh Janjua. Your voice will always remain immortal. It carried the soul of Punjab.

Salim Merchant: Heard about the sudden demise of singer Labh Janjua. What a fab artist. Prayers and condolences to the family #LabhJanjuaRIP

Sunidhi Chauhan: Shockingly sudden death of Labh Janjua. Really sad.

Shaan: Shocked to hear about Labh Janjua's untimely demise... Life is so uncertain ... RIP

Pritam: RIP Labh Janjua. Can't believe I have to write this. Can't process the news. Rest in peace my friend. My prayers are with his loved ones.

Ehsaan Noorani: RIP Labh Janjua loved your singing.

Harshdeep Kaur: Punjabi singer #LabhJanjua no more! Really shocking news! Life can be so unpredictable.

Ashvini Yardi: Just got the shocking news that our 'Dil kare chu che' singer is no more..RIP Labh Janjua.

Armaan Malik: I'm devastated at this! Paaji Labh Janjua no more with us.

Mayur Puri: Heartbreaking! The singer of 'Tauba main pyar karke pachhtaya' & 'Jee karda' - #LabhJanjua is no more! RIP. I remember dubbing with him for #PKSE. He was the star of 'Mundeya ton Bach Ke' but he treated me like a star. Such a lovely person.