Answer
(Fatwa: 1307/957/L=1431)
(1) Supplicating after salah is proved. Also, it is mentioned in Hadith that such du’as are accepted. These supplications and dhikrs are discussed in detail in the book ’Amal al-Yaum wa al-Lailah by Ibn al-Sunni. And when each muqtadi will follow it, it shall automatically take collective form. There is a booklet in Imdadul Fatawa vol. 1 page 795-816 with the title [استحباب الدعوات عقیب الصلوات], you should study it.
(2) What is the ground reality there, they know it. It is difficult to say anything about it.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband