The measuring deficit (or) surplus in Balance of Payments are:
(i) Basic Balances
(ii) Net Liquidity Balances
(iii) Official Settlement Balance.

The components of Balance of Payments are:
(i) Current Account.
(ii) Capital Account.
(iii) Unilateral Payments Account
(iv) Official Settlement Account.

"The Balance of payment is a summary statement in which principle all the records of the resident of a nation with the resident of all other nations are recorded during a particular period of time, usually a calendar year."

Yes, it is correct.

Official capital includes RBI's holdings of foreign currency and special drawing rights (SDR) held by the Government.

Banking capital includes movement into external financial assets and liabilities commercial and co-operative banks authorized to dealing in foreign exchange.

Private Capital consists of Foreign Investments, long-term loans, and Foreign Currency Deposits.

According to International Monetary Fund "The balance of payments for given period is a systematic record of all economic transactions taken place during the period between resident of the reporting countries".
(or)
In the words of Dominick Salvatore "The Balance of payment is a summary statement in which principal of all the records of the resident of a nation with the resident of all other nations are recorded during a particular period of time, usually a calendar year."

Balance of Trade denotes the difference between the value of Imports and the value of exports during the year.

Balance of payment refers to a systematic record of all economic transactions between the residents of one country and the residents of foreign countries during a particular period of time. For example: one year.