Dates | 1591 | Charminar is built by Muhammad Quli Qutub Shah and a new city founded on the south bank of River Musi |
| 1687 | Golconda's capture by Aurangazeb ends Qutub Shahi rule. Mughal rule begins in the Deccan. |
| 1713 | Nizam-ul-Mulk is appointed Subedar of six subas (provinces) of the Deccan and Faujdar of Karnataka. |
11 Oct | 1724 | Nizam-ul-Mulk defeats Mubarez Khan in the battle of Shakar Kheda in Berar and establishes his supremacy in the Deccan |
25 June | 1725 | Emperor Muhammed Shah confers the title of Asaf Jah on Nizam-ul-Mulk. |
| 1732 | Nawab Mir Ahmed Ali Khan, Nasir Jung is married to the daughter of Roshan-ud-Daula Zafar Jung. |
| 1734 | Nizam Ali Khan is born |
| 1738 | Nadir Shah invades India and Nizam-ul-Mulk plays a key role in restoring peace |
22 May | 1748 | Nizam-ul-Mulk dies at the age of 77 and is buried at Khuldabad, near Aurangabad. |
25 Dec | 1750 | Nasar Jung is shot dead by Himayat Khan, the Pathan Nawab of Kurnool |
| 1750 | Chowmahalla Palace is built by Salabat Jung |
3rd Feb | 1751 | Muzaffer Jung is killed in a fight with his Pathan dependents and Bussy proclaims the third son of Nizam-ul-Mulk Salabat Jung as the Subedar of the Deccan. |
3rd Feb | 1751 | Salabat Jung is installed as Subedar of Deccan |
Dec | 1753 | The French are assigned the four districts of Mustafanagar, Rajahmundry, Elur and Chicacole (Srikakulam) |
| 1756 | The French are driven out of the northern Circars by the British force after the out break of war between England and France. |
| 1759 | Salabat Jung concludes a treaty with the British for the grant of Masulipatnam and other districts. French influence comes to an end. |
8 July | 1762 | Nizam Ali Khan assumes the Subedari of the Deccan |
7 Sep | 1763 | Salabat Jung dies |
| 1763 | The capital of Deccan is shifted from Aurangabad to Hyderabad during the reign of Nizam Ali Khan, Asaf Jah II. |
April | 1779 | The first representative of the British, John Holland is sent to Hyderabad to act as an envoy and later as a president. |
25 Mar | 1798 | The French General Micheal Joachin Raymond dies and is buried at Saroornagar |
| 1798 | The Nizam was compelled by the treaty of 1798 to join the British against Tipu Sultan during the fourth Mysore War. The treaty establishes British influence in Hyderabad. |
6 Aug | 1803 | Nizam Ali Khan Asaf Jah II dies. |
11 Aug | 1803 | Sikander Jah Asaf Jah III succeeds as the Subedar of the Deccan |
9 May | 1804 | Arastu Jah dies after serving Hyderabad for almost 3 decades as Minister. |
25 July | 1804 | The construction of Mir-Alam Tank begins. It is completed on 8th June 1806. It is built under the supervision of H Russels of Royal Engineers, Madras regiment. |
| 1806 | Secunderabad is named after Sikender Jah Asaf Jah III with Col. Lang established the headquarters of British Subsidiary force after the Treaty of 1798. It was one of the largest British Cantonments in India. |
| 1808 | Construction of the Residency is completed. |
| 1812 | Raja Chandulal along Hungry Russell establishes a contingent known as the Russell Brigade later known Hyderabad Contingent. |
21 May | 1829 | Sikender Jah dies. |
23 May | 1829 | Naseer-Ud-Daula succeeds as Subedar of the Deccan. |
| 1846 | Hyderabad Medical School established with Dr. William MacLean as its first Principal. |
| 1853 | Berar Treaty is signed by the Nizam giving the management of the Berar district to the British with an annual revenue of Rs. 50 Lakh. |
March | 1854 | Foundation of Dar-ul-Uloom by Sir Salar Jung-I, with facilities for teaching in Arabic, Urdu, Persian, Telugu, Marathi and English. |
16 May | 1856 | Department of Mint and Stamps is established with Major Henry Rocky as the Mint Master. |
| 1857 | Naseer-ud-daula Asaf Jah III dies. |
18 May | 1857 | Afzal-ud-Daula succeeds his father as Subedar of the Deccan. |
| 1858 | A new coinage called "Hali Sicca" is introduced with the inscription "Sicca-e-Nizamul-Mulk Asaf Jah Bahadur". Consequently the coin in the name of Mughal Emperor seized to be used in Hyderabad. |
| 1858 | Army Department was established and Henry Rocks is made first commander -in-chief of the Nizam's army from 1864 to 1874. |
31 Aug | 1861 | The " Order of star of India" is conferred on Afzal-Ud-Daula, Nizam V. |
| 1867 | Government central printing press is established. |
6 Jan | 1867 | Forest Department is established with Byramji Manoji as its first Inspector General. |
| 1868 | Basheer Bagh Palace is constructed by Sir Asman Jah. |
6 Mar | 1869 | Mir Mahboob Ali Khan is proclaimed the Nizam, Asaf Jah VI, when he was hardly 2 years 7 months old. |
26 Feb | 1869 | First adhesive postage stamp is issued in Hyderabad. |
| 1869 | Nizam's State Railway is established. |
12 Dec | 1872 | To inform public about time, Municipal Corporation of Hyderabad organizes cannon fire at 4.30 AM, 12 Noon and 8 PM. |
8 Oct | 1874 | Nizam State Railway is completed and opened to traffic. |
| 1874 | Department of Government Gardens is established with G. Cornish as its first head. |
!8 Nov | 1876 | "SATI" or burning of Hindu widows is prohibited in the state and in this connection posters are printed. |
| 1876 | Foundation of Chaderghat High School. |
| 1877-78 | Foundation of the Madrasa-E-Aliya at Rambold's Koti at Chaderghat by Salar Jung I. |
| 1879 | Horse Racing starts at Malakpet. |
| 1880 | Postal Department is established with Shah Sawar Jung as its chief. |
8th Feb | 1883 | Mir Turab Ali Khan Salar Jung I dies. |
| 1884 | Foundation of Falaknuma Palace is laid on 3rd March 1884 by Sir Viqar-Ul-Umara. Construction completed in 1893. |
| 1884 | Official language of the state is changed from Persian to Urdu. |
| 1884 | Directorate General of Police and Jail Department is established. |
4 June | 1889 | Mir Yusuf Ali Khan Salar Jung III is born in Poona. |
4 Dec | 1889 | Clocks are fixed on four sides of the Charminar. |
| 1890 | Palmoor is named after Mir Mahboob Ali Khan Nizam VI as Mahboobnagar. |
| 1890 | Asafia Library is established. |
| 1892 | Lord And Lady Lansdowne visits Hyderabad. |
Jan | 1893 | Arch Duke France Ferdinand of Austria visits Hyderabad. |
| 1892 | Diarat-Ul-Maarif is founded. |
| 1893 | The Nizam announces constitutional reforms through an order called Qaniunche-i-mubarak. |
4 Nov | 1895 | Syed Hussain Bilgrami (Imad-ul-Mulk) appointed as tutor to Mir Osman Ali Khan (Nizam VII). |
15 Nov | 1895 | Lord and Lady Elgin visit Hyderabad. |
20 Aug | 1897 | Sir Ronald Ross discovers the parasite of Malaria in a dissected Anopheles mosquito at Begumpet. |
| 1899 | Nizam VI along with Mir Osman Ali Khan visits Calcutta. |
| 1902 | Lord and Lady Curzon visit Hyderabad. |
25 Aug | 1905 | Mir Mahboob Ali Khan Nizam VI lays the foundation of Town Hall in Public Gardens on his 40th birthday (now Legislative Assembly Building). It is finished in 1913. |
14 Feb | 1905 | The Victoria Memorial Orphanage is established. |
16 Apr | 1906 | The wedding of Nizam VII is celebrated at Eden Garden |
| 1907 | The Mahboobia Girls ' is founded |
22nd feb | 1907 | Mir Himayat Ali Khan (Azam Jah) is born. |
2 Jan | 1908 | Mir Shujat Ali Khan (Moazzam Jah) is born |
28 Sep | 1908 | Hyderabad witnesses disastrous floods in the river Musi. |
| 1908 | The Nizamia Observatory is established. |
| 1910 | Hyderabad electricity department is established and R.L.Gamlen is appointed its first chief. |
29 Aug | 1911 | Mir Mahboob Ali Khan Nizam VI dies. |
29 Aug | 1911 | Mir Osman Ali Khan is proclaimed as Nizam VII but formal Durbar is held on 12 Sep 1911 |
| 1913 | Department of Agriculture (Ziraat) is established with John Henry as its head. |
| 1914 | Archaeological Department is established. |
15 Sep | 1915 | Construction of High Court begins and is completed on 31st March, 1919. |
| 1917 | Osmania University is established. |
6 Sep | 1917 | Bureau of Translation and Compilation is established with Abdul Haq as its head. |
| 1917-18 | First Matriculation examination of Osmania University is held |
7 Nov | 1919 | Nizam VII introduces New Constitution of the Govt. with an Executive Council |
| 1920 | The Construction of Osman Sagar and Himayat Sagar is completed in 1920 and 1927 respectively. |
| 1921 | The Judiciary is separated from the Executive. |
25 Jan | 1922 | Prince of Wales visits Hyderabad with Lord Louis Mountbatten as one of his A.D.C.s |
| 1923 | Nizam VII celebrates the 200th anniversary of establishment of the Asaf Jahi dynasty. |
| 1923 | Jagirdas College is established. (Later converted into Hyderabad Public School) |
| 1924 | Nizam Sagar project is started and completed in 1931. |
28 sep | 1925 | Nawab Imad-ul-Mulk receives the first honorary degree of L.L.D from Osmania University. |
| 1926 | Osmania Medical College is opened. |
| 1926 | The first B.A. examination of the Osmania University is held |
| 1928 | District Water Works department is established with Md. Ahmed Mirza as its chief |
| 1929 | Industrial Trust Fund is created with Rupees 1 Crore to promote local industries. |
12 Nov | 1931 | Azam Jah and Moazzam Jah are married at Nice (France) to Princess Durru Shehvar, Daughter of ex. Sultan Abdul Majeed Khan, Caliph of Muslims and Princess Niloufer (niece of ex. Sultan) respectively |
| 1931 | Osmania University building project is started with Zain Yar Jung as its Chief Architect. |
6 Oct | 1933 | Mir Barkat Ali Khan (Mukarram Jah) is born (grandson of the Seventh Nizam) |
14 June | 1934 | British Govt. restores to the Nizam part of Hyderabad city which for century was known as Residency Bazaar (Now known as Sultan Bazaar). |
July | 1934 | Laying of the foundation stone of Osmania University buildings at Adikmet by His Exalted Highness the Nizam VII |
| 1935 | Construction of Moazzam Jahi Market is completed. |
| 1935 | Broadcasting Department is established under Nawab Ali Yawar Jung |
| 1935 | The Nizam donates Rs.10 lakh to the Aligarh Muslim University. |
| 1936 | Hyderabad State Aero Club, Begumpet is established |
| 1936 | Prince Azam Jah is given the title of Prince of Berar and a grand function is held at Chowmohalla. |
13 Feb | 1937 | Nizam VII celebrates Silver Jubilee of his reign |
6 Dec | 1945 | Nizam VII issues commemorative stamp to celebrate the victory of the allies. |
4 Aug | 1947 | Charles Gordon Herbert, last British Resident, leaves Hyderabad. |
29 Nov | 1947 | Standstill Agreement signed with the Government of India. |
13 Sep | 1948 | The Indian Army begins "Police Action" against Hyderabad. |
17 Sep | 1948 | The State Ministry resigns. |
17 Sep | 1948 | End of the Asaf Jahi era and imposition of military rule, followed by merger of Hyderabad into the Indian Union. |
2 Mar | 1949 | Mir Yousuf Ali Khan, Salar Jung III, dies a bachelor. |
26 Mar | 1950 | Mir Osman Ali Khan Nizam VII is made the Rajpramukh of Hyderabad State and remains so up to October, 1956 |
17 Feb | 1953 | Clocks presented by his Exalted Highness the Nizam VII in commemoration of his visit to the cathedral at Midnight mass on Christmas Eve 1952- All Saints Church. |
24 Feb | 1967 | Mir Osman Ali Khan, Nizam VII dies. |
| 1976 | Birla Mandir is constructed by the Birla Trust adjacent to Naubat Pahad |
| 1988 | First five-star deluxe hotel Krishna Oberoi is opened in Hyderabad. |