  We investigate the possibility of constraining parameters of Effective Field
Theory (EFT) of inflation with upcoming Large Scale Structure (LSS) surveys in
order to have a better understanding of inflationary dynamics. With the
development of the construction algorithm of EFT, we arrive at a properly
truncated action for the entire scenario. Using this, we compute the two-point
correlation function for quantum fluctuations from Goldstone modes and related
inflationary observables in terms of coefficients of relevant EFT operators. We
then perform Fisher matrix forecast analysis to estimate the possible error
bars on the parameters of EFT as well as on the inflationary parameters using
two upcoming LSS surveys, namely, LSST and EUCLID.
