sell on every rise.nifty supports are 17278,16800,16441.and resistance are 17721,18120..and nifty's 100 day and 200 day mooving avg(16702,16993) act as a support,and 20 day mooving avg (17690) act as a resistance.and also remember that doun slopping 20 day mooving avg act as a strong resistance.friend also remember that i am not recomend any buy or sell just share my view.