I would like to take my wife and her parents to Europe with us this winter (for a couple of weeks) from India. I'm wondering how difficult it would be to get a visa for them. I would be the complete sponsor for my wife and my in-laws.
I've been to Europe 5 times so far and visited 20 countries in the Schengen zone (all in good standing) and so has my wife. I can show more than the sufficient proof of funds (for everyone I am sponsoring), proof of fixed assets (property) in India and stable income for me and my wife.
I am 30 years old, my wife is 28 and my in-laws are 61 and 49. My in-laws are have income in cash from home business (no business registration) in their personal account (though not enough to fund their own trip). They have never visited any country outside India before and we would like to take them to Europe as a first visit to a first world country.
I would like to know if it would be a challenge to apply for a Schengen visa (without having any business proof) but having me as their sponsor. We are planning for France, Sweden and Finland. I'm an Indian citizen staying in India and so are they.
Additional info : They will have 3 years income tax return by the time they apply for the visa. Though proof of their business is not present since its a home business and their income is in cash. Also there are no proof of their fixed assets.