If the property belonged to your deceased father and he had clear and marketable title to the property then he wa an absolute owner of the property and eligible to transfer the same to anyone of his choice and in the manner he may decide.
Thus the transfer of property by him by execution of a registered gift settlement deed in your wife and your name with retaining the lifetime interest is very much legally valid and unquestionable.
Thus your mother cannot challenge the registered gift deed in any capacity since this was transferred by your deceased father during his lifetime and he is not reported to have died intestate as far as this property is concerned.
Therefore it may be legally not possible to protect the property if it is to be taken away by UK insolvency services authority.
You can check with the local lawyer that if the property situated in India can be appropriated by a foreign country court order and look for some loop holes in that manner.