The apex court said there was no occasion to doubt the decision-making process in the multi-billion dollar Rafale deal.
The schedule for Gujarat will be announced separately.
The court said a 'scam was created when there was none'.
The BJP and JD-U will form the new government after the latter party's chief resigned saying in the circumstances it became difficult to run the grand alliance government.
They cited precedents where no picture of Mahatma Gandhi was used on such KVIC material.
Kamal Nath said Sonia Gandhi spoke with him again after she received the letter and told him that 'well if this is your reason, fine'.
Searches are being conducted on Friday at 12 locations including Delhi, Patna, Ranchi, Puri and Gurgaon.
Minister of State for Home Kiran Rijiju had said the cabinet was forced to take the decision because of a constitutional breakdown as six months had lapsed between two sessions of the state assembly.
'He is anything but astute or charismatic. He believes the Congress can win elections without alliances in the Hindi heartland.'