(1) THE Revenue has filed these appeals against the judgment of the Madras High court dated 2/11/1997 in TCs Nos. 147, 146, 171 and 240 of 1974. The appeals have been filed on the basis of certificate of fitness granted by the High court under Section 261 of the Income Tax Act, 1961 (hereinafter referred to as "the Act"). The High court has, however, granted certificate to the Revenue only in respect of the judgment in TC No. 147 of 1974 because the questions referred to in that case alone were answered against the Revenue. In the other three tax cases the questions referred to were answered in favour of the Revenue and certificate of fitness was granted to the assessee. Under a misapprehension appeals have also been filed by the Revenue against the judgment in Tax Cases Nos. 146. 171 and 240 of 1974. The said appeals are dismissed as not maintainable. We would confine ourselves to the appeal against the judgment in Tax Case No. 147 of 1974 wherein the following two questions were referred to the High court, for its opinion by the Income Tax Appellate tribunal (hereinafter referred to as "the tribunal").

1. Whether on the facts and in the circumstances of the case, the Appellate tribunal was right in holding that there was no mistake apparent from record in the grant of development rebates and that the Income Tax Officer had no jurisdiction to pass a rectification order under Section 155(5 of the Income Tax Act, 1961 to withdraw the Development Rebate allowed therein?

2. Whether on the facts and in the circumstances of the case, the Appellate Tribunal was right in holding that the Income Tax Officers rectification order was really one under Section 155(5 of the Income Tax Act, 1961 and that therefore the assessees appeal against such order was competent and maintainable in law?

The questions relate to Assessment Years 1960-61 and 1961-62.

(2) M/S Dalmia Magnesite Corporation, Salem, the assessee herein, was a partnership firm having been constituted on 7/11/1956. Originally it was having three partners, namely (7 M/s orissa Cement Ltd., (2 M/s Dalmia Cement Ltd., and (J) M/s Magnesite Corporation of India Ltd. Each partner had one-third share. The firm was established as an industrial undertaking for prospecting magnesite ores and manufacture of lead burnt magnesite. Production commenced on 1/1/1959. The previous year for the Assessment Year 1960-61 was the period from 1/7/1958 to 30/6/1959. On 16/6/1959 there was a change in the constitution of the firm and two of the partners. viz., M/s orissa Cement Ltd. and M/s Dalmia Cement Ltd. retired from the firm and M/s Dalmia Cement (Bharat) Ltd., became a partner. In the reconstituted firm. the share of the M/s Magnesite Corporation of India Ltd., continued to be one-third while that of M/s Dalmia Cement (Bharat) Ltd. was two-thirds. Under a scheme framed by the Madras High court by order dated 16/11/1962 in Company Petition No. 46 of 1962 the assets of M/s Magnesite Corporation of India Ltd., came to be vested in M/s Dalmia Cement (Bharat) Ltd., and the Magnesite Corporation of India Ltd., became a wholly owned subsidiary of M/s Dalmia Cement (Bharat) Ltd., with effect from 1/1/1963. As a result the shareholding of the partners in the assessee firm changed and the share of Magnesite Corporation of India Ltd. was reduced to one-tenth while that of M/s Dalmia Cement (Bharat) Ltd., was increased to nine-tenths. A scheme for amalgamation of the two companies (partners in the assessee firm) was submitted before the Madras High court in Company Petition No. 27 of 1964 filed under Section 394 of the Companies Act, 1956. The said scheme was approved by the High court by order dated 10/7/1964 with effect from 1/1/1964. Under the said scheme the undertaking of M/s Magnesite Corporation of India Ltd. vested in and became the property of M/s Dalmia Cement (Bharat) Ltd., as on and from 1/1/1964 and M/s Magnesite Corporation of India Ltd. without winding up, stood dissolved