Nidar Singh makes many fake claims to being the final exponent of Shastarvidyabut in one of his interviews in Martial Arts Magazine he states:
KG: Are there many masters of this art?
NS: As guns became more popular the emphasis on this art decreased in the itinierant Akali Nihang armies. Today there are not many masters of this art alive. The ones I know, if still alive, are Nihang Baba Ram Singh in UP, India and Bhai Ranjit Singh of Patiala who has partial knowledge of this art. There are no doubt others in Budha Dal (oldest Sikh martial order established in 1606) but they being itinerant mendicants of secretive nature, are not easy to track down.
Frank Levin, Martials Arts Magazine, USA.
Baba Giana Singh – Shastarvidiya – Diwali 2005
Baba Ji is about 98 years old, he reads a Panj Granthi and Das Granthi everyday at amritvela followed by practice of Shastarvidiya, he was a student of Sant Baba Gurbachan Singh Bhinderawale. He has trained 17 Singhs into skilled teachers of Shastarvidiya. May Maharaj allow Baba Ji to keep inspiring us, and the best of health. This photo was taken at Akali Phoola Singh Burj, Diwali, 2005. Baba Ji is an exponant of Jhatka Gatka, or Jang vidiya. (ripped from http://akalinihang.blogspot.co.uk/2009/11/baba-giana-singh-shastarvidiya.html
In a meeting with Baba Joginder Singh, Jathedar of Budha Dal, who is currently on a visit to the UK. He also confirmed that there are many gupt teachers of the old Martial Arts within the Budha Dal. But the main fight these days is within ourself against Kalyug that we need to place our efforts on.