Yes till your wife is not here you are in Class I in which case you get less than 1900 and with Class III your net earning will be 2050 also next year for Health Insurance you pay more.
If you also bring along your wife then minimum you should be ready to spend 800 for flat and between 1700-2000 as advance which you deposit to get a flat.
Then additional expense for the furnishings if you get a furnished flat then rent goes above 1000 per month.
Then the travel to work,food and additional expenses and in all you may be able to save 400-600 per month more than that one can easily save in India.
Also don't be shocked with the price of food like a kg tomatoes costs 2-3 Euros
If this offer was for Berlin then i would say go ahead as the cost of living there is half of city like Munich.