The said gift is Exempt under section 56 of the Act. At the occation of marriage doesn't only means the date of marriage.
In this context,the Courts have held that “on the occasion of marriage” does not mean on the date of marriage but the gift should be associated with the event of marriage. It would mean that the marriage should be the immediate cause of making the gift.
These are the some cases in which your case covered:
1. In the case of A Rudrakoti v. CIT 149 CTR 81 (Mad) – a gift given 4 years after marriage was reckoned to be gift on occasion of marriage and therefore was held to be entitled to exemption.
2. In the case of CGT v. G Venkataswamy 236 ITR 539 (Mad), gift given after 14 years of marriage was held to have been given “on the occasion of marriage” and therefore exempt.
As I can see from your profile that your location in Chennai and the above judgements are pronounced in the Madras high court, that is also a big benefit for you.