Originally Posted by deepdhiman
am expecting reply from someone who has done training in any of Mumbai institute and finds it best...
I can tell you name of one institute that best worked for me, but the same may not serve you better, because it all depends upon your level of expertise in Linux. However, add 'best' word in google search and try again. Go through those listed institutes and check their profiles. Prepare a list and visit them one by one. Consult with their students who're already studying there. You can then compare and choose the best one among them.