Dharma Wheel

It was very hard to find any free online reading for sutra names Susiddhi kara, some text I found by googling tells that it contains the way of making mandala.

Does Anyone has that sutra?

Namo Stu Buddhaya, Namo Amitabhaya

The Susiddhikara Tantra is an important text in Japanese Vajrayana. There are practices that are based on this Tantra that can be found in Tendai and Shingon, however you will need to be ordained to learn them.

I'm not sure about Tibetan Buddhism but I assume it is also an important text.

As far as I'm aware there are no free pdfs of this Tantra on line, but I might be wrong.

Gassho,
Seishin

Yes, I've struggled searching internet for the Sutra, but still no result yet. I've many colletions of mahayana sutras and all of them I got it for free as I giveto others for free too. I hope there's a free giving susiddhi kara sutra shared in internet soon.

May the teaching of the Buddha exists long in this world for the sake of sentient beings.

I'm also trying searching the samadhiraja sutra and can't find any free online sources.

Either buy the book or get it from a library.

http://www.amazon.com/Esoteric-Sutras-E ... 188643915X

Eventually the publisher (http://www.bdkamerica.org/default.aspx?MPID=81) may provide a legal pdf, but it hasn't yet.

Yes, I've visited the library too, there're more considerable the foremost mahayana sutra including ratnakuta section, tantrika sutra that is hard to be found free.
Last time I just got the holy Mahamayuri Vidyarajni Sutra for free -->http://mahamayurividyarajni.wordpress.c ... ahamayuri/ that was in english format already. It also good toread and best to practice.