The governor of Pakistan's Punjab province resigned on Thursday just days after slamming the Nawaz Sharif government for its "diplomatic failure" to build ties with the US after President Barack Obama's historic second visit to India. Punjab Governor Mohammad Sarwar had severely criticised the government of PM Nawaz Sharif for its failure to bring the US president to Pakistan. "Obama's visit to India is a failure of the Pakistan government. It is a big failure on foreign affairs front, said Sarwar. Government sources said that the criticism by Sarwar had disturbed Sharif, who demanded an explanation, but instead the governor chose to resign.