Eleven others, including Rao's son K T Rama Rao and nephew T Harish Rao, were also sworn in as Cabinet Ministers by Governor E S L Narasimhan who administered them oath of office and secrecy at the Raj Bhavan.
Nine other Cabinet Ministers are Mohammed Mahmood Ali, T Rajaiah, Nayani Narasimha Reddy, Eatela Rajender, Pocharam Srinivasa Reddy, T Padma Rao, P Mahender Reddy, Jogu Ramanna and G Jagadish Reddy.
There was no woman representation in the Cabinet, which is expected to be expanded towards the end of this month, TRS sources said.
Sources said Telugu Desam Party President was peeved that there was neither a personal invitation nor a telephone call; it was said to be a routine invitation from the administration.
It is no secret that there is no love lost between Rao and Naidu, who fought a fierce electoral battle marked by personal attacks.
Naidu, who was swept to power in the successor State of Andhra Pradesh, is slated to be sworn in as Chief Minister on June eight at a ceremony to be held between Vijayawada and Guntur.
Narasimhan was sworn in as the Governor of Telangana. Andhra Pradesh High Court Chief Justice Kalyan Jyoti Sengupta administered the oath to Narasimhan, who will be the common Governor of Telangana and residuary Andhra Pradesh.
