Dear Viru,
Your question is related to AS-14 & other small concepts.
See, Capital Reserve is created of transactions which are directly related to capital transaction. In a way capital reserve is a capital profit arising out of capital transactions.
Now coming to your point of crediting capital reserve in amalgamation. This credit to capital reserve or capital profit can take place both in Amalgamation in the nature of merger & Amalgamation in the nature of purchase.
One thing you note that Amalgamation is nothing but taking over of business. This take over comprises of taking over Assets & Liabilities. This results in a capital transaction... Why?????
See what you are taking is Assets & Liabilities... These Assets & Liabilities will be represented by Capital or owners capital. In other words, Owners Capital = All Assets - Outsiders Liability.
This means you are indirectly dealing with capital of other business. Owners capital is long term funds & any profit /loss arising out of it will be a capital profit / capital loss.
You cannot credit general reserve because of above reasons. General reserve is created out of revenue transactions.
So in Amalgamation in the case of merger when there is excess of share capital of the transferor Co. over Purchase consideration(PC), it leads to capital profit or capital reserve. In a way transferee Co. is paying more than the share capital of the transferor Co. So its a capital profit to transferor Co.
Similarly in Purchase, the excess of net assets acquired over PC results in capital reserve in the books of transferor Co.
Hope you understood. Feel free to ask any doubt in relation to my reply.