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SIGMA ADVANCED SYSTEMS LIMITED — Regulatory Filings 2026
May 26, 2026
62603_rns_2026-05-26_5ab2cf74-45f9-412e-9415-b16612ae0cf7.pdf
Regulatory Filings
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RAMANAGARAM ENTERPRISES PRIVATE LIMITED
Date: 1st April 2026
To
General Manager
Listing Department
BSE Limited
P J Towers, Dalal Street Fort
Mumbai– 400 001
To
General Manager
Listing Department
National Stock Exchange of India Limited
Exchange Plaza, Bandra Kurla Complex,
Bandra (E), Mumbai – 400051
To
Company Secretary
Sigma Advanced Systems Limited (Formerly, Megasoft Limited)
No.43/1 (129 to 140), Prestige Palladium,
8th Floor, Greams Road, Nungambakkam,
Chennai, Tamil Nadu, 600006
Dear Sir,
Sub.: - Disclosure under Regulation 31(4) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011
Symbol : SIGMAADV
Security code : 532408
ISIN : INE933B01012
As per Regulation 31(4) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, we, Ramanagaram Enterprises Private Limited, being the promoter of Sigma Advanced Systems Limited (“Company”), hereby declare and confirm that we have not made any encumbrance over the shares held by us in the Company, directly or indirectly, during the financial year ended March 31, 2026.
We request you to take on record the above information and acknowledge the receipt of the same.
Thanking You,
For Ramanagaram Enterprises Private Limited

Duddukuri Venkata Dhanumjaya Rao
Director
DIN: 09268412
CC: Audit Committee
Sigma Advanced Systems Limited
CIN: U40109TG2002PTC038452
Registered Office: ilabs Centre, Building-3, Plot No.18, Software units Lay Out, Madhapur, Hyderabad 500 081, Telangana
Tel: +91-40-40484444 | Fax: +91-40-40484445 | E: [email protected]
RAMANAGARAM ENTERPRISES PRIVATE LIMITED
Date: 1st April 2026
To
General Manager
Listing Department
BSE Limited
P J Towers, Dalal Street Fort
Mumbai– 400 001
To
General Manager
Listing Department
National Stock Exchange of India Limited
Exchange Plaza, Bandra Kurla Complex,
Bandra (E), Mumbai – 400051
To
Company Secretary
Sigma Advanced Systems Limited (Formerly, Megasoft Limited)
No.43/1 (129 to 140), Prestige Palladium,
8th Floor, Greams Road, Nungambakkam,
Chennai, Tamil Nadu, 600006
Dear Sir,
Sub.: - Disclosure under Regulation 31(4) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011
Symbol : SIGMAADV
Security code : 532408
ISIN : INE933B01012
As per Regulation 31(4) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, we, Ramanagaram Enterprises Private Limited , being the promoter of Sigma Advanced Systems Limited (“Company”), hereby declare and confirm that we have not made any encumbrance over the shares held by us in the Company, directly or indirectly, during the financial year ended March 31, 2026.
We request you to take on record the above information and acknowledge the receipt of the same.
Thanking You,
For Ramanagaram Enterprises Private Limited

CC: Audit Committee
Sigma Advanced Systems Limited
CIN: U40109TG2002PTC038452
Registered Office: ilahs Centre, Building-3, Plot No.18, Software units Lay Out, Madhapur, Hyderabad 500 081, Telangana
Tel: +91-40-40484444 | Fax: +91-40-40484445 | E: [email protected]