Dear Subramanianji
Thank you very much for pointing this out for my unqualified statement. Sorry about that. Functional malefics if placed in good Bhava attain strength and do more harm to the Bhava owned but if placed in Dusthana lead to Vipreet RajYoga leading to sudden good effects.Also I needed ...

Any Bhava will be weakened if it is aspected by or conjoined by a natural malefic/s or if its lord is functional malefic. The other reason of being weakened is, if its Karaka is posited in it and at the same time aspected by malefics. The quantum of weakening will depend on the quantum of malefic ...