: 169 [16] Despite its centerist and secular program, the TeI attracted the right-wing conservative vote bank and support from the Muttahida Majlis-e-Amals ultraconservative clergy.

The demonstration, protested primarily against inflation and was held to mark a "black day" on the first anniversary of Zulfikar Ali Bhutto's presidency.

[21] During the nationwide 1970 Pakistani general elections, Party decided to run on the Rawalpindi's constituencies, believing that the city's population would vote in appreciation of a retired air force official.

"[17] In 1973, criticism of Prime Minister Bhutto grew further and Khan held him directly responsible for authorizing the 1970s military operations to curb nationalism in Balochistan, Pakistan.

: 205 [23][17] In 1974, Khan criticized the nationalization of industry in Pakistan and his party benefitted from financial support from industrialists such as Nawaz Sharif, Javed Hashmi, Shuja'at Hussain to oppose such policy measures.

In 1975–76, Khan eventually supported and was instrumental in forming the National Front, a massive nine-party conservative alliance, and was said to be determined to oust Bhutto and his party from the government and power.

: 181 [27] To the historians and observer, the letter was a pivot for the military to engage in establishing martial law against Prime Minister Bhutto in 1977.: 68 [25][27] party leader khan was reportedly offered a cabinet post in the Zia administration but he declined to serve.

[27] After the imposing of martial law by the bloodless 5 July 1977 Operation Fair Play coup by the Army Chief, General Muhammad Zia-ul-Haq, Khan began opposing the Zia administration and called for support for restoring democracy.

[27] In 1983, Khan went on to join the left-wing alliance, the Movement for Restoration of Democracy (MRD) led by Benazir Bhutto, supported by the communist parties at that time.

: 134 [31] In 1988, his letter calling for support for martial law became a public matter Khan and failed to defend his multiple constituencies against the PPP's politicians when the 1988 Pakistani general elections were held.

: 114–115 [32] He also lost the 1988 general elections and leveled accusations on the military of financing (Mehrangate) the conservative Pakistan Muslim League (N) (PML(N)) and PPP.