Kick the Tyres.
My wife and older kid (19) are both taxpayers. The Younger daughter is at school (17.5 yrs). So they are paying their own way. I'm not some sort of benefit scrounger, you know. I've paid a bloody fortune in UK tax in the 36 years I've been working.
It sounds to me like I meet 'test three': Full time overseas, zero work in the UK. therefore allowed not more than 90 days 'in country'.
Now, if I could just get out of paying the Indian tax- that would be splendid!