DA Rates Jan 1986 To Jan 2010

Dear Friends.
Jai Hind.
I have been getting many queries regarding the DA rates for period Jan 1986 onwards. I expressed my helplessness to all of them.
And here is now a gift from Brig AN Suryanarayanan surivini@gmail.com .
On behalf of YOU ALL, ‘i’ thank Brig Suryanarayanan for sending this information to us.
In service of Indian Military Veterans
Chander Kamboj

From: Brig Suryanarayanan
Sent: 20 March 2010 19:27
Subject: DA RATES FROM 1-1-1986 to JAN 2010
Keep this info handy. IF and WHEN, we get the arrears of Rank Pay (Dhanapalan Case), this may be helpful to check!
Brig AN Suryanarayanan (Retd)

* In April 2004 50% DA merged into basic pay/pension and 11% carried forward. Therefore the basic pay/pension became 1.5 into Basic pay/pension. Let us call the (1.5 x basic pay/pension) = RB (Revised Basic)
Therefore, In April 2004 the effective Pay/Pension plus DA became–RB + [11% of (RB)]