So, all shares held in physical after March 31 will become illiquid except for transmission and transposition. Transmission (transfer to heirs in case of death of owner) would be possible in case of inheritance but the new owners will have to dematerialise the shares if they wish to sell or further. On the other hand, transposition means change in ownership pattern. For example, change in combination from A & B (in this order) to B & A or from A & B & C to B & A & C will still be possible in paper form even after March 31, 2019.
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