New Delhi, May 17 -- A fresh debate triggered on the future of the Indian National Developmental Inclusive Alliance (INDIA) bloc after senior Congress leader and former Union minister P Chidambaram voiced concerns about the grouping, calling it frail, and saying he was not sure if the opposition alliance was still intact. Speaking at the launch of a book written by Salman Khurshid and Mritunjay Singh Yadav on Thursday, Chidambaram said: "The future (of the INDIA bloc) is not so bright, as Mritunjay Singh Yadav said. He seems to feel that the alliance is still intact, but I am not sure. It is only Salman (Khurshid) who can answer because he was part of the negotiating team for the INDIA bloc. If the alliance is totally intact, I will be very happy. But it shows at the seams that it is frayed." He, however, expressed optimism that the Opposition grouping can be put together. "There is still time. There are still events which will unfold," he added. The former finance minister emphasised that the INDIA bloc - formed in 2023 to take on the ruling Bharatiya Janata Party (BJP) in the 2024 general elections - was fighting against a "formidable machinery". "In my experience and my reading of history, there has been no political party so formidably organised as the BJP. It's not just another political party," the Rajya Sabha member said. Chidambaram's comments come months after two key INDIA bloc allies - AAP and Congress - fought bitterly against each other in the Delhi assembly polls, which the BJP won. Some key INDIA bloc allies such as the Trinamool Congress and the Samajwadi Party supported the AAP, creating further rifts in the bloc....