Dear Shri.Yatin Bhopi,
Since product ABC is manufactured by Unit B [out of product XYZ manufactured by Unit A], duty needs to be paid while clearing product ABC. Since ABC is used for manufacture of PQR on behalf of Unit B by the job worker and it is not sold by Unit B to the job worker, Rule 8 of Valuation Rules, which is reproduced below, gets attracted:
"8. Where whole or part of the excisable goods are not sold by the assessee but are used for consumption by him or on his behalf in the production or manufacture of other articles, the value of such goods that are consumed shall be one hundred and ten per cent of the cost of production or manufacture of such goods."
Therefore, Unit B needs to clear the goods to job worker on payment of duty at 110% of the cost of production.
Further, the valuation in the case of job worked goods has to be done in terms of Rule 10A of the Valuation Rules, which is as under:
"10A. Where the excisable goods are produced or manufactured by a job-worker, on behalf of a person (hereinafter referred to as principal manufacturer), then,-
(i) in a case where the goods are sold by the principal manufacturer for delivery at the time of removal of goods from the factory of job-worker, where the principal manufacturer and the buyer of the goods are not related and the price is the sole consideration for the sale, the value of the excisable goods shall be the transaction value of the said goods sold by the principal manufacturer;
(ii) in a case where the goods are not sold by the principal manufacturer at the time of removal of goods from the factory of the job -worker, but are transferred to some other place from where the said goods are to be sold after their clearance from the factory of job-worker and where the principal manufacturer and buyer of the goods are not related and the price is the sole consideration for the sale, the value of the excisable goods shall be the normal transaction value of such goods sold from such other place at or about the same time and, where such goods are not sold at or about the same time, at the time nearest to the time of removal of said goods from the factory of job-worker;
(iii) in a case not covered under clause (i) or (ii), the provisions of foregoing rules,wherever applicable, shall mutatis mutandis apply for determination of the value of the excisable goods:
Provided that the cost of transportation, if any, from the premises, wherefrom the goods are sold, to the place of delivery shall not be included in the value of excisable goods.
Explanation.- For the purposes of this rule, job-worker means a person engaged in the manufacture or production of goods on behalf of a principal manufacturer, from any inputs or goods supplied by the said principal manufacturer or by any other person authorised by him."
As per my understanding the method suggested by me is very simple, uncomplicated, and feasible, and litigation free.