Dear All,
Yes, technically, the person who is under suspension, can submit resignatiion.
Employeer may or may not accept the resignation.
Employer will tend to accept the resination in case, time and effort in DE are not coominsetate with likely penalty.
In case, of grave offence or ot give a signal to others, the employer may not accept as already pointed out by other members,the employer now has upper hand.
Regards,
Col.Rathi