Claim

Pakistan's Tarbela dam has an installed capacity of 4,888 MW, supplied about 30% of Pakistan's power needs as of 2012, has lost about 40% of its live storage capacity to silt, and Pakistan has failed to repair or de-silt it for 20 years.

“तुम्हारे पास एक बांध है जिसे टारबेला बांध कहते हैं ... आपकी स्थापित क्षमता 4,888 मेगावाट है। ... 2012 तक पाकिस्तान की बिजली जरूरतों का लगभग 30% दर्शाता है। ... आप पिछले 20 वर्षों से इस बांध को न तो रोक पाए हैं और न ही इसकी मरम्मत कर पाए हैं। ... बांध की जीवन क्षमता में 40% की कमी आई है।”

Rationale

The three quantifiable elements check out against reputable primary and secondary sources: installed capacity of 4,888 MW (Wikipedia, Britannica, WAPDA reporting) is exact; Britannica explicitly states the dam met about 30% of Pakistan's power needs as of 2012; and multiple outlets (Express Tribune, Dawn, WAPDA data) confirm roughly a 40% loss of storage capacity to sedimentation, with live-storage loss estimated at ~37.5–40%. The only soft element is the rhetorical claim that Pakistan 'failed to repair or de-silt for 20 years' — reservoir sedimentation on this scale is largely irreversible and de-silting a reservoir this size is technically impractical rather than mere neglect, so that framing is opinion, but it does not contradict the underlying facts. The core numeric claims are substantiated, so the statement is accurate.

Evidence

• https://en.wikipedia.org/wiki/Tarbela_Dam Confirms Tarbela's installed hydroelectric capacity is 4,888 MW across 14 units (rising to 6,418 MW after the fifth extension), and documents heavy sedimentation reducing live storage from an original ~9.68 MAF. ✓ reachable · archived
• https://www.britannica.com/topic/Tarbela-Dam States the dam has an installed capacity of 4,888 MW and supplied about 30 percent of Pakistan's power needs as of 2012 — matching the claim's exact figure and year. ✗ unreachable · HTTP 403
• https://tribune.com.pk/story/2298728/tarbela-loses-40-capacity-due-to-silting Express Tribune reports Tarbela reservoir has lost roughly 40% of storage capacity to silting (gross ~40.6%, live ~37.5%). ✗ unreachable · HTTP 403
• https://www.dawn.com/news/1727296 Dawn reports a 'mountain' of silt has cut Tarbela's capacity by about 40 percent, corroborating the storage-loss figure; live capacity fell to ~5.73 MAF (~40% loss) by 2025. ✓ reachable · archived