Same for ZEE Bangla. However, instead of BACK IN, ZEE Bangla puts ফিরে আসছি (Phire Aaschi - BACK IN in Bangla).
I guess, ZEE TV, ZEE Marathi, ZEE Sarthak, ZEE Kannada, ZEE Punjabi, ZEE Thamizh and ZEE Keralam all are doing the same, as this resembles ZEE5 logo. Maybe advertisement/promotion of their ZEE5 app.