i have been practising yoga viz deep breathing/exaling 5 mts,akalbati 25 mts,anlomvilom 20 mts,bramri 5 mts,udgeet 5 mts,for the last 2 years without break ,but my b.p is not controlled without medicines.

I am so glad that you are doing all these practices and also with such resolve and faith for such long time. A couple of suggestions if you want to follow is that ... reduce your intensity of doing kapalbhati, it should be done very gently in high B.P. also you can reduce the timing to 15 minutes but instead use that time to do Bhastrika and anulom vilom. Also while doing the pranayam have this thought getting stronger and stronger that you are HEALTY, you are at peace and you are THE PEACE. See your posture while doing the pranayama and you should be relaxed. Blood pressure is as we know now happens due to excessive "pressures" in life and all these practices with a close look at your life style and making positive changes will help you better and minimize the damage done by high B.P. Acess , Adjust and change, stay healthy by being happy...