Linkers is mistaken, the requirements for ILR under
319E as the dependent of a PBS migrant only require that you were last given leave as a PBS dependent and that you have lived together as husband in wife for two years or more, they do not require that you have been a dependent for two years. You must however be applying for ILR at the same time as your wife. It seems a bit risky returning to India to apply for a PBS dependent visa only a month before your wife is due to apply for ILR - what if the application takes longer than this?