Hi Pavithra Ponraj,
The behaviour in default HTML5 input date is as commented. The display format date is different in IOS and Android and it also depends on configured region of mobile device. The date picker is native and different according to device.
You could use input text with DatePicker widget. The DatePicker widget allows you to specify the date format.
In these screenshots you can see the differences in date format of Android/IOS devices using my locale (es-ES):


Notice that the date picker also is different. In first input is native (changes according to device) and second input is more homogeneous between devices.
Kind regards, David.