25 must see bollywood movies my count 23 how much is yours .. i am going to watch garam hava and pyasa soon check the link

1.     Black (2005)

2.     Lagaan (2001)

3.     Satya (1998)

4.     Dilwale Dulhania Le Jayenge (1995)

5.     Qayamat Se Qayamat Tak (1988)

6.     Mr. India (1987)

7.     Jane Bhi Do Yaaron (1983)

8.     Arth (1982)

9.     Deewaar (1975)

10.   Sholay (1975) .

11.   Bobby (1973)

12.   Garam Hawa (1973)

13.   Pakeezah (1972)

14.   Anand (1970)

15.   Padosan (1968)

16.   TeesriManzil (1966)

17.   Guide (1965)

18.   Sahib Biwi aur Ghulam (1962)

19.   Mughal-e-Azam (1960)

20.   Pyaasa (1957) .

21.   Mother India (1957) .

22.   Do Aankhen Barah Haath (1957)

23.   Devdas (1955)

24.   Do Bigha Zameen (1953)

25.   Awara ( 1951) 

so                                    source .. thanks to indiatimes