Manmohan Singh served as the country's prime minister from 2004 to 2014.

Former Prime Minister Manmohan Singh turns 86 today. On his birthday, Prime Minister Narendra Modi, Congress president Rahul Gandhi and other leaders greeted him on Wednesday.

Prime Minister Narendra Modi greeted his predecessor on Twitter and prayed for his long life.

"Greetings to our former prime minister Dr Manmohan Singh ji on his birthday. I pray for Dr Singh's long life and good health," PM Modi tweeted.

Greetings to our former Prime Minister, Dr. Manmohan Singh Ji on his birthday. I pray for Dr. Singh's long life and good health. - Narendra Modi (@narendramodi) September 26, 2018

Congress president Rahul Gandhi praised Mr Singh's selfless service to the nation.

"Manmohan Singh ji's birthday is an opportunity for us to appreciate and remember his many years of selfless service and dedication to the cause of nation building. I wish him a very happy birthday and good health and happiness always," Rahul Gandhi said on Twitter.

Manmohan Singh Ji's birthday is an opportunity for us to appreciate and remember his many years of selfless service and dedication to the cause of nation building. I wish him a very Happy Birthday and good health and happiness always. - Rahul Gandhi (@RahulGandhi) September 26, 2018

Delhi Chief Minister Arvind Kejriwal called Mr Singh a man of integrity, sobriety and humble nature.

"I wish a very happy 86th birthday to Dr Manmohan Singh, our former Prime Minister. A man of integrity, sobriety and humble nature. I pray for his long & healthy life," Mr Kejriwal tweeted.



I wish a very happy 86th birthday to Dr Manmohan Singh, our former Prime Minister. A man of integrity, sobriety and humble nature. I pray for his long & healthy life - Arvind Kejriwal (@ArvindKejriwal) September 26, 2018

Home Minister Rajnath Singh, Madhya Pradesh Chief Minister Shivraj Singh Chouhan, Dravida Munnetra Kazhagam president MK Stalin, Punjab Chief Minister Amarinder Singh and Bengal Chief Minister Mamata Banerjee also tweeted best wishes on Manmohan Singh birthday.



Birthday greetings and good wishes to former Prime Minister Dr. Manmohan Singh ji. May he be blessed with good health and long life. - (@rajnathsingh) September 26, 2018

Wishing former PM & senior Congress leader,Dr Manmohan Singh a very Happy Birthday. His work in nurturing a strong, growth oriented economy in difficult times speaks volumes of his vision & governance that has earned him a place of pride in India's history.#HappyBirthdayDrSingh - M.K.Stalin (@mkstalin) September 26, 2018

My best wishes to Dr Manmohan Singh ji on his birthday. May God bless this great icon of the nation with health and happiness always, and with many more years of inspiration for all of us. #HappyBirthdayDrSinghpic.twitter.com/K8rOECuFcx - Capt.Amarinder Singh (@capt_amarinder) September 26, 2018

Birthday greetings to former Prime Minister of India, Dr Manmohan Singh Ji - Mamata Banerjee (@MamataOfficial) September 26, 2018

Former Prime Minister Manmohan Singh was born in Gag, now in Pakistan, on September 26, 1932. Mr Singh is an economist who became a politician and was the country's prime minister from 2004 to 2014.

Manmohan Singh, who was the first Sikh in office, was also the first prime minister since Jawaharlal Nehru to be re-elected after completing a full five-year term. Mr Singh's political career began in 1991 when he was appointed as the country's Finance Minister under the leadership of late prime minister PV Narasimha Rao. It was the same year during which he helped usher in "liberalisation and privatisation" to the Indian economy.