How to do balance previous year challans in challan mapping?

Dear experts,

Could any one guide me to solve this issue,

While doing challan mapping for the period April 2015,

1)In the 3rd screen for entering challan details I am unable to enter values,due to no scrolling down for that I selected the last entry and clicked on save icon then only I am getting editable mode screen,Is it right process or not?

2) After entering the challan details as

     sr.no       Challan no     Challan date     Tax Amount     Total Challan Amount      Bank Branch     Remakrs

     1               12345          07.05.2015          296255          296255                              1111111     April

and click on execute, selected on my challan no and selected all perners in left screen and clicked on mapping icon. I am getting the below screen

The left side screen & right side screen

The left side amounts not getting balnce,these all from previous year challans and form 16 also generated,

Now if i want to doing challan mapping for this present financial year,So please guide me to solve this.

Thanks in Advance,

Best regards,

Naresh