Does stair climbing increases high blood pressure

I don't think so. I have not heard of any case where blood pressure and stair climbing are related. Stair climbing can cause the following problems and you have to watch out for it:
• Hernia: Stair climbing is one of the main causes of hernia. If you climb stairs on a daily basis then there is a good chance that you might develop a case of hernia. It could become serious if it is not dealt with quickly.
• Back pain: Back pain is another side effect of stair climbing. You most probably will develop a bad case of back pain after about two or three weeks of continuous climbing,

I agree with above discussion, Anuja given nice information side effects of climbing the stair.

Actually climbing stairs has many healthy benefits. I don't think so it increase ur pressure.
The benefits of stair climbing include:Stair climbing is effective for cross training in between workouts.Helps you lead an active and independent life by strengthening your muscle and heart capacities.Helps tone the muscles.Puts less pressure on the joints than running or jogging on concrete surfaces would do.
Climbing stairs can quickly increase your heart rate, which can greatly improve your cardiovascular fitness. It also helps in strengthening and toning the lower parts of our body, especially the calves, thighs, buttocks, and even the abdominal area. Stair climbing is a very simple exercise that anybody can perform at home.

Hey Akansha,
Individuals with high blood pressure should be aware that stair­ climbing can often cause a rapid rise in blood pressure. But its not true always. You need to consult your physician to know your exercise intensity.