Retirement as Prime Minister

After Dr. M retire as Prime Minister think that Malaysia would not be same as the moments of Dr. M. He did not involve in any events. He just focus with his family and his wife. 

After Dr. M retire, he also resigned from UMNO because he think that UMNO did not same when Pak Lah be president. But he rejoined UMNO when Pak Lah retire in 2009. 

There have award that Dr. M get when he been Prime Minister. This is the list.

YEAR	NAME OF AWARD	STATE
2003	S.M.N Seri Maharaja Mangku Negara	Malaysia
2003	D.K Darjah Kerabat Yang Amat Dihormati Selangor	Selangor
2003	D.S.B.S.  Darjah Satria Bintang Sarawak	Sarawak,Malaysia
2003	D.K.  The Most Honourable Order Of The Royal Family Of Kedah	Kedah,Malaysia
2002	D.K.  The Most Esteemed Order Of The Royal Family Of Kelantan	Kelantan,Malaysia
1997	Tuanku Syed Putra Of Perlis Royal Outstanding Award	Perlis,Malaysia
1997	S.S.A.P. Knight Commander Of The Sultan Ahmad Shah	Pahang,Malaysia
1996	Fellowship of The International College of Surgeons	Malaysia
1996	Anugerah Cemerlang	Perlis,Malaysia
1995	D.K.  The Most Esteemed Order Of The Royal Family Of Tuanku Syed Putra	Perlis,Malaysia
1994	Wira Keadilan	Pasir Mas Foundation
1992	Melaka Historical City's Honorary Citizen Award	Melaka
1991	Wira Nusa Raya	UMNO,Sabah
1989	D.K.(I) The Most Esteemed Order Of The Royal Family Of Johor	Johor,Malaysia
1988	D.U.K.  Kedah Order Of Merit	Kedah,Malaysia
1985	'FAR', Father of Modern Development By the Pasir Salak UMNO Division	Pasir Salak
1985	P.I.S Sultan Ibrahim Medal I	Johor,Malaysia
1982	D.U.N.M Knight Grand Commander Of The Most Honourable Order Of Melaka	Melaka,Malaysia
1982	S.S.M.T Seri Setia Sultan Mahmud Terengganu	Terengganu
1982	D.K.N.S The Most Esteemed Order Of The Royal Family Of Negeri Sembilan	Negeri Sembilan,Malaysia
1981	D.U.P.N Knight Grand Commander Of The Most Honourable Order Of Pulau Pinang	Pulau Pinang,Malaysia
1981	S.P.N.S Knight Commander Of The Most Honourable Order Of Negeri Sembilan	Negeri Sembilan,Malaysia
1981	S.P.D.K Seri Panglima Darjah Kinabalu	Sabah,Malaysia
1981	S.P.C.M  Seri Paduka Cura Si Manja Kini	Perak,Malaysia
1980	D.P.Sarawak  Dato Patinggi Bintang Kenyalang	Sarawak,Malaysia
1979	S.P.M.J.  Dato' Seri Paduka Mahkota Johor	Johor,Malaysia
1978	S.P.M.S.  Seri Paduka Mahkota Selangor	Selangor,Malaysia
1977	D.S.D.K.  Seri Setia DiRaja Kedah, Kedah	Kedah,Malaysia
1977	SSAP	Pahang,Malaysia
1976	The Second Tun(Dr) Ismail Oration Academy of Medical	Malaysia
1965	Pingat Perak	Perak,Malaysia

Once Prime Minister hand over the position, automatically they get title 'TUN'. Same goes to Dr. M. Title 'TUN' is like symbols to make people recognize who is former Prime Minister. 

Resources: 
1) http://belleroseengol.blogspot.com/2009/12/tun-dr-mahathir-mohamad-fourth-prime.html
2) http://en.wikipedia.org/wiki/Mahathir_Mohamad#Prime_Minister