Are there any specific timeframes within which the President must lay the reports from the Commission before both Houses of Parliament?
No, there are no specific timeframes within which the President must lay the reports from the Commission before both Houses of Parliament. The context states that the President shall cause all such reports to be laid before each House of Parliament "along with a memorandum explaining the action taken or proposed to be taken on the recommendations relating to the Union and the reasons for the non-acceptance, if any, of any of such recommendations."