Income tax exemption under section 80 gga

I am a pensioner and had made some donation to Akshaypatra which is tax exempt under section 80GGA.

I am filling e-return in IRT1 for assessment year 2017-18

I find no place to fill details od donation under section 80GGA although a whole tab is there for section 80G. 80GGA is only shown in tab income details whrere one can fill total value without giving details

can somebody advise where to give details or no details need be given.

thanks.