Which is not much, I however disagree 100% that Ashok Khumar Singh is a fraud or a hijacker of anything.
I believe him to be the real thing but a relationship between us as Guru and Chela are not at the right time right now.
What I will say is this I have deeply investigated Kriya Yoga have been doing so on and off since the late 1980's.
I became a Kriyaban of SRF in 1990 just recently found my card. Yes back then you got an ID card naming one as a Kriyaban so that you could attend Kriyaban meetings functions visit the Mother Center etc...
SRF is a safe place to start. They have been around forever and have some odd beliefs but the Kriya they teach is not harmfull unless you fail to practice all of the Kriya lessons correctly. Hint never, ever omit MAHA Mudra. This Kriya is simplified but good. What they did was omit certain Kriyas and simplify the Kriya Pranayama the core of Kriya Pranayam is intact.
This is a good starting school which in the 1920's was all that could be hoped for in the U.S. that is nearly 100 years ago now. Geting people of 1920's America to sit on the floor was likely strange enough for that era let alone other aspects of Kriya. For alot of people this is all they have ever needed for others like myself it was never enough.
To call them a fraud or a Hijacker is not correct to say they do not teach the original Kriya is correct.
KYI is a safe place to learn from. The Kriya they teach is more complicated it is very powerful and once initiated and taught further contact is up to you no one bothers you at all.
Unlike SRF they do not require you go through prelimenary lessons, which for some just starting out may indeed be helpful.
Ashok Khumar Singh of Vedic Kriya Yoga from everything I can tell and from my own limited experiences and the advice of others I deeply respect is Okay.
I am writting all of this out on this forum because I do care. If someone were to ask why? I would say I do care because I wish someone would have written something like this when I was searching.
Unfortunatly the internet is allot like news papers we get to read allot of negative things about why something is not good but very rarely is something ever put in a positive light unless someone is trying to sell something.
In plain English I think that stinks!
I have nothing to sell.
Kriya Yoga is very powerful, it gives results you can measure and getting the right teaching is not easy there are allot of con's out there. I have named two places one a Church which SRF is the other an Institute which KYI is.
From experience I can tell anyone reading neither of these will hurt you or try to rob you and prey on your beliefs.
What I can not tell anyone is that either of these teach the original Kriya Yoga.
From my research Original Kriya Yoga 1 st level consists of in this order of performance:
Maha Mudra to balance the energy and open the channels both SRF and KYI teach this.
Kecharimudra or talabia Kriya to train the tongue to enter the nasal pharanax thus connecting an energy circuit. Only KYI teaches this SRF does not. Cutting the tongues frenulum is not permitted as time goes by the tongue will with the advancement of ones practice go on its own, at a certain point the energy you are working with demands this and makes it happen on its own I have experienced this and can say it does not happen all at once, but it probablt can Itook back control at the first sting of pain as the linual frenulum begain to snap.
Nabi or Navi Kriya to release the Naval knot. SRF never teaches this KYI does not teach this in the first initiation it is unknown to me if they teach this in higher initiations.
Kriya Pranayama Proper to enter the sushumna and purify the Chakras SRF teaches a simplified version of this it is effective you will feel energy flowing through the spine and reach estatic states and Khumbaka and reach a level of quitude. KYI teaches a more complex and even more powerful version which takes greater focus but yields incredible results.
And Yoni Mudra or Jyoti for those who dislike the word Yoni as it refers to a females unique anatomy. In the 1920's America refering to a females reproductive parts would not have been tolerated or accepted in any way. So the change in name. Jyoti means light. Which is appropriate.
Yoni or Jyoti Mudra which is closing off the physical senses and one will see the light of the Chakras as well as the opening to the shushumna and the reflecton of the Medulla while practicing a certain Pranayama. Srf uses the Kriya Pranayama proper they teach as the vehicle during Jyoti and Maha Mudra KYI does not.
Kyi has a specific Pranayama that is used for Jyoti Mudra and it is very powerful.
At first I was like okay so why does it matter if I see chakras reflections etc.. Trust me when I write this it does matter but it is one of those things that needs experienced not read. It will not hurt anyone to see these things so go for it.
KYI also teaches lesser Kriyas that are very helpfull and just like the stabilizing muscles one recruits when lifting free weights versus using machines gives added results.
This is what I know this is what I have to share and I hope it os helpfull to someone it may seem off topic but the main topic is the Holy Kriya and as such I disagree with the O.P. on his list as I think it is not correct and he may be preventing people from finding what they are looking for.
Now just in case anyone thinks I am getting down on the O.P. I am not. I do challenge you O.P. to prove your accusations and I further challenge you to provide a source of learning true original Kriya. To point out the things to avoid and not give a place for seekers to find is not fair or solid research.
If you have not found anything yet or anyone you can say teaches true Kriya Yoga thats okay too but lets have some balance here.
Sorry for typos I see them the ipad is not the best tool for long posts and I have to go now.