[5] According to scholar Lucien Benichou, "[Razvi] can arguably be considered to have been the political figure whose influence and unrealistic vision proved the most detrimental to the interests of the State in the crucial years of 1947–48.

Then he settled down as a lawyer in Latur, Osmanabad district, where he had contacts through his father-in-law, Abdul Hai, who was a former Deputy Superintendent of Police.

After joining the Majlis-e-Ittehadul Muslimeen (Ittehad), Razvi is said to have donated all his property to the party, which made him famous and earned him the title of Siddique-e-Deccan.

[8] After the premature death of Nawab Bahadur Yar Jung (the founding leader) in 1944, the Ittehad party fell into fractious extremism.

He is quoted to have said "Death with the sword in hand, is always preferable to extinction by a mere stroke of the pen", prompting the Indian government to call him "the Nizam's Frankenstein monster".

[10] He was also implicated in the murder of patriotic progressive Muslims such as Shoebullah Khan who condemned Razvi's Razakars and advocated merger with India.

[14] Kasim had 10 children (5 sons & 5 daughters) including a "professor, doctor, fashion designer, [and] counsellor" who have settled in various countries around the world.