S. 50C : Capital gains-Full value of consideration- stamp valuation- Though the 3rd Proviso to S. 50C, which provides a safe harbour of 5%, applies w.e.f. 01.04.2019, it must be interpreted to apply since the insertion of s. 50C (01.04.2003) because it is curative and removes an incongruity and avoids undue hardship to assessees. [ S. 43CA, 45 ]