  One of the puzzles of the SM is the large hierarchy between the Yukawa
couplings of different flavours. Yukawa couplings of the first and the second
generation are constrained only very weakly so far. However, one can obtain
large deviations in the Yukawa couplings in several New Physics (NP) models,
such as e.g. models with new vector-like quarks, or new Higgs bosons that
couple naturally to individual fermion families. In this work, we investigate
the potential bounds on the NP Higgs Yukawa couplings modification $ \kappa_f$
for light quarks from double-Higgs at the LHC, starting from a model
independent formalism. We have looked at the two Higgs boson final state $ b
\bar b \gamma \gamma $, and the relevant experimental cuts to reduce
backgrounds and estimated the potential exclusion bounds for $ \kappa_f$. We
have considered both linear and non-linear effective field theory for the Higgs
light quark coupling modifications.
