As in present scenario, it may or may not be profitable.
If electricity charges are very low or free then you will get profit,
else with time, your income will shrink every month as difficulty will rise and you may not even get ROI.
Also, you have to take account of maintenance and powercuts.
Check for mining profitability
here.(it's approximation, actual results may vary).
You can also rather buy bitcoin and just hold it to earn from Bitcoin price gain.
Check Bitcoin buying guide
here.
So if electricity is dirt cheap then only go for mining.
Hope it helps