Dear Applicant,

Your signature is like your very own identity unique to you, though is could ne changed but I would suggest you not to do so as signature play a significant role, it might confuse the authorities if they find different signatures. So try to not change it if possible. But yes you could change it. If possible try to keep a fixed signature as it can get handily changing repearepeatedly wont be good choice.

Note: the competent authority should be intimated about signature change and the changed signature should be incorporated in the documents of identity to prevent signature mismatch. You can have 2-3 signature that only belong to you