As per Indian Contract Act, " Consent " means " agreement to do something " " in the same sense ".
Phrase " Agreement to do something " has two parts :
(2) Something to be done
Phrase " In the same sense " has two meanings :
(1) in the same meaning
(2) in the same way
When one Party to contract agrees by writing ( by putting signature ) and the other Party to
contract agrees orally, then the method of Agreement is in different ways.
Then, how could Consent to Contract be legally valid, when way of Agreement is different ?