Is govt teacher shows income from tuition fee ?

Hi, 

My brother is a contract base teacher in govt school , his monthly pay is Rs 5000/- , as he is on contract basis , but he is having ID card from education department with govt seal and stemp . 

Now we actually want to file a case for foreign visa , and for this purpose we need ITR having income more then 2lac appox , 

But as i releady stated that his annual income is 60k . 

Now may query is , can we show income from other source under tution income , he is actually having tution income .

Is their any rules and provision related to tution income or not , 

Please help .