The figure below provides the latest map of the 800 MHz (24th Aug 22).
(The spectrum marked for MTS in the figure below has been acquired by RCOM, and is un-liberalized)
In order to read the earlier maps (including the one above) in this embedded link, one needs to adopt the following approach. Note, that all guard bands have been removed in the current map to make it palatable with 4G and 5G.
Below is the past description of this band is now no longer relevant. This is preserved only for the purpose of reference.
Each row is linked to a specific service area. For example, the first row lays out the spectrum of AP (Andhra Pradesh), and the remaining others link the rest of the 21 licensed service areas (LSA). Also, note that an individual colored block is of 1.23 MHz width, and therefore one will need 4 such blocks to complete a chunk of 5 MHz (more accurately 4.92 MHz, and the remaining 80 KHz is compensated by the guard band on both sides of the larger block). To prevent confusion from now on we will refer to 1.23 MHz as 1.25 MHz, as the marginal shortfall is made up with that in the guard band. The spectrum of each of the 5 operators is indicated by their individual distinct colors (see the legend above). The spectrum assigned is of three types. Those marked “L” are liberalized for the deployment of any technology (2G,3G,4G), and those marked “U” are possible for use only for 2G deployment. The blocks marked as “S” are those that were surrendered by TATA, and will be available for auction as and when decided by DoT. The blocks marked as “white” are free/unused spectrum blocks of nonstandard size, serving the purpose of isolating usages between operators (guard band). The size of these blocks can be calculated by multiplying the numeric number by 30. For example, the size of the block marked as G10 is 10 x 30 = 300 KHz. Similarly, other block sizes can be calculated.