  We report the results of the high precision photometric follow-up
observations of five transiting hot jupiters - WASP-33b, WASP-50b, WASP-12b,
HATS-18b and HAT-P-36b. The observations are made from the 2m Himalayan Chandra
Telescope at Indian Astronomical Observatory, Hanle and the 1.3m J. C.
Bhattacharyya Telescope at Vainu Bappu Observatory, Kavalur. This exercise is a
part of the capability testing of the two telescopes and their back-end
instruments. Leveraging the large aperture of both the telescopes used, the
images taken during several nights were used to produce the transit light
curves with high photometric S/N ($>200$) by performing differential
photometry. In order to reduce the fluctuations in the transit light curves due
to various sources such as stellar activity, varying sky transparency etc. we
preprocessed them using wavelet denoising and applied Gaussian process
correlated noise modeling technique while modeling the transit light curves. To
demonstrate the efficiency of the wavelet denoising process we have also
included the results without the denoising process. A state-of-the-art
algorithm used for modeling the transit light curves provided the physical
parameters of the planets with more precise values than reported earlier.
