kingston hanuma vihari has credited his success in the second test against the west indies here to ravi shastri saying the india head coachs advice not to stay upright but flex the knee while batting helped him notch up his maiden centuryvihari 53 not out and 111 was adjudged the man of the match in indias 257run win over the hosts in the second test on mondayasked what did shastri tell him after his first innings vihari said he shastri was talking about flexing my knees a little bit i was a little upright in the first innings so flexing my knees meant i could move my foot both on front and back footit worked out very well and a lot of credit should go to him vihari told india fielding coach r sridhar during an interview the video of which was posted by bcci on its websitethe 25yearold emerged as indias top rungetter against the west indies in the twomatch test series with 289 runsi relish batting under pressure because that is the challenge you have to accept as a batsman and these situations brings the best out of me said the andhra batsman who had scored a 93 in the first test in north soundi feel i try to focus on what the situation is and have a certain game plan and i was fortunate enough to have good partnerships with jinx ajinkya rahane he batted beautifully as wellvihari said he was confident of a good outing during the twomatch test series against the west indies as he had spent enough time on these pitches during the last two months with the india a teami was in really good space i have been in caribbean for last two months i have been practicing and playing matches on this wicket he saidso i was really confident and i think i played well in the practice match and it gave me that extra boost i was looking forward to this series and i am happy it went wellin his first year in international cricket vihari has played six tests but he seemed to have lost a bit of hair got married and has also scored 6000 plus first class runs despite being just 25 years of agei started my firstclass cricket quite early and thats why i could score 6000 runs i dont know about the hair may be too much batting from childhood he said with a laugh that experience will count batting for nine years in first class cricket and it helped me in pressure situation