The Telugu Desam Party chief, on his first visit to the capital after his party snapped ties with the ruling NDA, said his priority was to press the Centre to give a special status and funds to Andhra Pradesh.
"Today my priority is my state. We quit NDA because the government was ignoring our demands. This is injustice," Mr Naidu, who met several opposition leaders in the capital, said.
The chief minister also held discussions with Hema Malini and Jayant Sinha of the BJP and leaders of a few NDA allies.
He pointed out that regional and Left parties had supported the TDP's efforts in Parliament to bring in a no-confidence motion.
A source from the party said Mr Naidu had told his party MPs that he would not "beg" for a special status for Andhra Pradesh and that there was little chance of any kind of a reconciliation with the NDA.
Mr Naidu, who met the party leaders in Parliament, also discussed the special status issue with Left leaders.
"We all met. We discussed the issue of a special status for Andhra Pradesh. We also questioned the trustworthiness of the prime minister. We discussed how frustrating it is for Members of Parliament from Andhra Pradesh," CPI(M) leader Mohammad Salim said after meeting Mr Naidu.
He said the Left leaders assured Mr Naidu that they supported him.
"We said we are all with him. We should all combine the issues and take on the government on the floor of the house rather than going to the well. He was very appreciative of that," Mr Salim said, adding that the Andhra Pradesh chief minister endorsed the proposal to move together.
"Naidu thanked the TMC for its strong support to the no-confidence motion notice brought in by the TDP," TMC MP Derek O'Brien said.
Among the other issues discussed by Mr Naidu and the leaders were the proposals of the 15th Finance Commission and coordination between like-minded parties.
He also met leaders from parties including Congress, SP, BSP, AIADMK, DMK and Shiv Sena.
Mr Naidu met Veerappa Moily of the Congress, Sharad Pawar of the NCP and Harsimrat Kaur Badal of SAD.
The meetings that took place at the Central Hall of Parliament were aimed at garnering support for the no-confidence motion against the NDA government.
The TDP snapped ties with the BJP alleging neglect of the southern state and failure of the Centre to grant a special category state status to Andhra Pradesh.
According to the chief minister's office, Mr Naidu met leaders including Farooq Abdullah (NC), Sudip Bandyopadhyay (TMC), D Raja (CPI), V Maitreyan (AIADMK), Anupriya Patel (Apna Dal) and Ram Gopal Yadav (Samajwadi Party), among others.