Zikr & Dua

Loud zikr

Q: I am a bit confused about doing zikr loudly. After fajr in my local masjid (Deobandi) people usually do zikr loudly, and also in some spiritual gatherings I have taken part in (Chisti tariqa, with a Deobandi Sheikh) we do zikr loudly in group (by saying "laillaha... illa Allah" and "Allhu"). However, I have now come across that Imam Abu Hanifa considered loud zikr to be a bida'. Can you please clarify the matter?

Durood-e-Akbar

Q: What is the purpose/significance of durood Akbar (Allahumma Salli Ala muhamadin Sayyid ul mursaleen) as well as other Durwood found in the last pages of the smaller version of the quran.

Reciting the names of Allah Ta'ala

Q: I have a question regarding the beautiful names of Allah, is it sunnah to recite them for the zikr of Allah while expecting some benefit? For example, "reciting ya Rahman 100 time after every compulsory prayer makes you so and so". If it is not right then please explain what is the proper way of worshiping with the beautiful names. Also if you can recommend a Hadith will be very nice too?

Aayat-e-Karima

Q: I have a question that praying the wazifa Ayat-e-Karima is wrong or right? I have been reading that this wazifa is powerful and helps us in difficulty and gives us relief and I would like to know is it right and could you please give me more details on it?