The Nationalist Congress Party has said Maharashtra Governor Bhagat Singh Koshyari should confirm whether he had issued a letter to Eknath Shinde inviting him to form government in June last year after a revolt in the Shiv Sena and maintained Deputy Chief Minister Devendra Fadnavis' explanation on the issue was unacceptable.

State NCP chief spokesperson Mahesh Tapase said the entire episode raises question over the constitutional validity of the government led by Chief Minister Eknath Shinde and supported by the Bharatiya Janata Party (BJP).