Index information on the following are the prerequisites for calculation of Total Returns (TR) Index:

1.  Price Index close.
2.  Price Index returns.
3.  Dividend payouts in Rupees.
4.  Index Base capitalisation on ex-dividend date


Dividend payouts as they occur are indexed on ex-date.
Indexed dividend = Dividend payout(Rs.) x 1000
Base cap of index (Rs.)

Indexed dividends are then reinvested in the index to give TR Index.

TR Index = [Prev. TR Index + (Prev. TR Index * Index returns)] + [Indexed dividends + (Indexed dividends * Index returns)]

Base for both the Close index and TR index close will be the same.

Example:
Base index for both the Index and TR Index is 1000.

Day	Dividend Payout	Base capitalisation	Indexed Dividend
7	Rs.15,00,00,000	Rs.15,50,00,00,00,000	0.09677
10	Rs.22,00,00,000	Rs.15,72,50,00,00,000	0.13991

Index Return = (Current index- Prev. index)/ Prev. index.

Day	Index close	Index return	Indexed Dividend	TR Index
1	1000			1000
2	988.92	-0.01108		988.92
3	978.22	-0.01082		978.22
4	964.01	-0.01453		964.01
5	953.07	-0.01135		953.07
6	948.82	-0.00446		948.82
7	917.26	-0.03326	0.096774	917.3536 *
8	902.56	-0.01603		902.6521
9	913.21	0.0118		913.3031
10	904.08	-0.01	0.139905	904.3107 **
11	898.86	-0.00577		899.0894
12	892.79	-0.00675		893.0178

* = [948.82 + (948.82 * -0.03326)] + [0.096774 + (0.096774 * -0.03326)]
   = 948.82 + (-31.5577532) + 0.096774 + (-0.00321870324)
   = 917.2622468 + 0.09355529676
   = 917.3536 (rounding)

** = [913.3031 + (913.3031 * -0.01)] + [0.139905 + (0.139905 * -0.01)]
    = 913.3031 + (-9.133031) + 0.139905 + (-0.00139905)
    = 904.170069 + 0.13850595
    = 904.3107 (rounding)

Note: The indexed dividend on Day 7 will participate in the TR index from Day 7 and the indexed dividend on Day 10 will participate from Day 10.