Placing of the hands

"hands should be placed on the chest" (Aiynul Hidaya. page 350.)

Raising hands both before and after Ruku.

"know that Rafeedun before and after ruku is authentic and none of them is mansooqh (cancelled)" Anwar Shah Kashmir & Imam Badr Alam meerathi in Faizul Bari 2/225, Al-arf Shazi pg 125 ,Danilal farqadeen pg 22

Saying Aameen aloud

"saying Aameen aloud is proved authentic through various chain of narrators in Ibn majaah, Nasai ,Abu Dawud, Jami Tirmidhi and Sahih ibn hibban -some of our Hanafi scholars eg. Ibn Haman in" Fathul Qadeer" 

And his disciple Amir Haj in "Sharya manyatul mussalli" have pointed the authenticity of saying Aameen aloud. Thus after lot of research and understanding we have realised  "THAT THE NARRATION OF SAYING AAMEEN QUIETLY IS DHAEEF (WEAK)'' Abdul Hai Hanafi (Luknowi) Sharhe Wiqaya Vol.1 pg 197.

Recitation of Surah Fatihah behind an Imaam.

Ata'bin abi Raba رضي الله عنه, who was a Taabi'een and also a teacher of Abu Hanifa is quoted "Sahabah recited Surah Fatihah in all the the Salaah."(Gaysul Gamam pg 157) 

According to Imaam Mohammed (student of Abu Hanifah) the muqtadi should recite Surah Fatihah in sirri( Zohr and Asr). This is also preffered in the most trustworthy books of Hanafi fiqh ie. Hidaya and Mujtaba Sharhe Kuduri.

Even many of our Hanafi scholars have accepted this view. In the same way even in Jahri (Fajr, Magrib, Isha) salaah when the Imaam takes a pause the muqtadi's recitation cannot be denied"  "Allama Abdul Hai Hanafi in Sharhe Waqaya Umdaturriaya page 41."

Tarawih "8" OR "20"

Hanafi Muhaddith Abdul Haq Dehlvi in his book Fatharasool mannan pg 227 " the tradition of 20 rakaah which is common these days has no proof of authenticity from the prophet ﷺ The narration of Ibn Abbas in Ibne Abi Shaiba about 20 rakaah is dhaeef (Weak)." It contradicts the Saheeh hadeeth of Ayesha رضي الله عنه.

Below is a list of Hanafi scholars and their books which agrees that the hadeeth of 20 rakaats of tarawih is dhaeef (Weak) as compared to 8 rakaah.

1)Mujtahid Allama kamal Ibnul Hamam (hanafi) in fath hul Qadeer pg 205.

2)Mulla ali qari in mirqat Shahre mishqat.

3)Allama Ibn zeli Hanafi Nasbur-riaya fi Takhreejul Ahadeeth Al-Hidaya vol 1 pg 293

4)Durre mukhtar pg 216

5)Sharh Kanzby Allama masood misri pg 665

6)Allama Abu Tayyab Muhammad Bin Abdul Kadir Sindhi Madni ,Hanafi.Nashqbandi in Shayh Tirmidi pg 423

7)Allama Anwar Sha kashmiri in Afurasazi Vol 1 pg 329

8)Aiynul Hidaya part 1 -pg 563

9)Nurul Hidaya pg 133

10)GayatulAvtar vol 1pg 326

11)Moulana Yusuf Kandhalvi "Ameer Tablig Jamaat" in his book " Hayat -us-Sahaba" Vol 3 pg 165-167 in the chapter of "Tarawih" agrees that Tarawih consists of 8 rakaah only. Nowhere in the entire chapter he mentions anything about 20 rakaahs.

"DO NOT MIX TRUTH WITH FALSEHOOD NOR CONCEAL THE TRUTH WHEN YOU KNOW" (Al-Quran surah Al-Baqrah: 2 Chapter:42)