there is no doubt about how brilliant srinivas is, in playing his style of mandolin, its quite unique and he is a real innovator. here in india, he is very popular in south india and many places across the globe but sadly we dont get to hear much of him in north india... perhaps because south india and north indian classical are quite different sounding. i am from kolkata (north) and have never seen or played the srinvas model. snehaish mozumder, (i am cureently learing with him), plays north indian classical style and has made is own designs of the mandola. i have one of them and its good for this style of music. u cant react to finishing and wood work for the price u get it for.
i think the mandolin and guitar makers in india are still not making instruments that meet world standards. but they are made for a particular style/sound. and it works.
two reason, one is the price in kept at bare minimum. and secondly the mandolin is not an indian instruments. i am sure u wont get good tablas and sitars and dotaras in the US or Germany.
Good tablas maybe. I see sitars and sarods here and there but I don't know how good they are.