I thought all the Mk1As were to be 2052 due to some problem with power management.
If something has changed recently, then I've been living under a rock. The last I heard, it's 1 squadron 2052, 3 squadrons Uttam.
HAL is also offering Uttam Mk1 for export at this time, in Malaysia and Argentina, which will make LCA uncompetitive without IAF involvement.
In any case, unless the news is official, don't believe it. There seems to be a flurry of anti-indigenous media reports from some lobbies because of MRFA. We will eventually see some heavy-duty anti-HAL news over the course of the year once MRFA begins.