what happen in it all other greha come between rahu and ketu and they don’t give you their result. this is known as kal sarp dosh. it chave many categories in it and some are dangerous but some are even helpful to some persons but it were rare when kal sarp dosh helps a person.

in kal sarp dosh you will face obstacles in your work, you will face failures, your number of enemy and opponents will increase,it will disturb your family and social life .

but it can be cured for it you have to worship lord Shiva, perform rudrabhishek of lord Shiva, make a jap of maha martunjay mantra, perform poja in nasik, gardh ganga or in trimbkeswar temple

encouraging people to perform the ritual? or just give knowledge?

I know of Mahakala and Kala Cakra but I don’t know that of what you said.