Brainiak.in is one of the best social learning platform , we help maharashtra board students to clear doubts from the syllabus , our team explain every concept through zoom or via youtube videos and 100% free of charge .
The doubt solution for std 10th is done by Edgram India i.e. {edgram.in}
we are still finding good youtubers and online webisites for JEE and NEET
