Family visa or visit Visa

Hi
Please suggest me any good way

my husband working in Muscat driver he completed his two years n n he arranged his new madoniya he purchased from one of his friend

he dont want to renewal his labor card but by the force of his spounser he renewed his labor card in May 2018 b4 renewal my husband said them he ll continue till October 2018 they agreeed
But now they are telling to complete one year more then they can thing to give release or for noc
They are not on their words every time they are changing their words
So we went Indian embassy n man power they said their are no rule for noc or release till ur spounser agree to give u
Now my question is my husband will go for cancel in October after his cancellation
Can he join family visa or visit visa without noc
And wt requirements I need for his visa
Please reply me
Thanks