The All India Tennis Association (AITA) asked the sports ministry for approval to travel to Pakistan after a request to shift the fixture to a third country was rejected by the International Tennis Federation tribunal.
source https://timesofindia.indiatimes.com/sports/tennis/top-stories/india-may-miss-davis-cup-match-hosted-by-rival-pakistan/articleshow/106348807.cms
source https://timesofindia.indiatimes.com/sports/tennis/top-stories/india-may-miss-davis-cup-match-hosted-by-rival-pakistan/articleshow/106348807.cms