Ta_mbu_lam, an age-old vrata, a_gama tradition

http://www.hindunet.org/saraswati/tambula1 

Tambu_lam, an age-old vrata, a_gama tradition Mahavams'a is dated to 6th century CE and Br.hatsamhita_ to 5th century CE and both texts attest to the tradition which has cognates in S'rilanka, Malaysia, Philippines and Australia. Is a similar tradition attested in areas of Indo_Iranian and IE languages? The word ta_mbu_la 'piper betel' is Austro-asiatic; baru_i 'betel grower' (Bengali).