Jvsl — Shares in physical document & want to convert in demat

I (Mr. Laxman Dagru Shelar), have 2000 shares of JVSL of Rs 10/- face value, amounted of b20000/-
In Regd. Folio no. -JVS0004674, With 20 Certificate s of no. - 185030 to 185049, & i want to convert it in demat, so pls suggest the procedure,
Thanking you

Yours Faithfully
Mr. Laxman Dagru Shelar