That's inaccurate. India backed out of Iran pipeline. USA, old Kabul regime and India resisted completion of TAPI. India did not want pipelines that went through Afghanistan and Pakistan because of its own insecurities.
In the near term Pakistan will focus on its vast untapped brown coal reserves and hydro power. Gas Pipeline with Iran will be finished soon. Turkmenistan is pushing hard for completion of TAPI. If India does not want to participate....does not matter. LNG plants in Pakistan can get Turkmen or Russian gas to Bangladesh and other Asian countries.