The model number given in both articles for the (unofficially dubbed) Note 10 Lite - SM-N770F - matches, which ideally means two different sources have spoken to SamMobile and Agarwal, but it's also possible it's the same source repeating themselves.
Samsung's Galaxy S10 and Galaxy Note 10 are two excellent series of phones, but they do cost a fair amount of money. Unlike the Galaxy S10e, which is more affordable than the Galaxy S10 but is quite similar in terms of specs, the Galaxy Note 10 Lite is expected to be a downgrade over the standard Galaxy Note 10 in most areas. However, now it would appear that Samsung is working on a cheaper version of the Note 10 in order to boost sales. Samsung has so many phones out that it's hard to figure out exactly who the Note 10 Lite would be aimed at that isn't now being served.
We should know more about the device such as specs and other hardware details in the coming days or weeks. If this is true, it will be the third Galaxy Note model this year after the Note 10 and Note 10+ were launched a couple of months earlier.